diff --git a/src/legacy/core_plugins/console/index.js b/src/legacy/core_plugins/console/index.js
index da0e9cb33bfe..c22e8d0d945d 100644
--- a/src/legacy/core_plugins/console/index.js
+++ b/src/legacy/core_plugins/console/index.js
@@ -130,7 +130,7 @@ export default function (kibana) {
       apps: apps,
       hacks: ['plugins/console/hacks/register'],
       devTools: ['plugins/console/console'],
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
 
       injectDefaultVars(server) {
         return {
diff --git a/src/legacy/core_plugins/input_control_vis/index.js b/src/legacy/core_plugins/input_control_vis/index.js
index d664ad0135d5..b6e18cf0f7e3 100644
--- a/src/legacy/core_plugins/input_control_vis/index.js
+++ b/src/legacy/core_plugins/input_control_vis/index.js
@@ -17,13 +17,15 @@
  * under the License.
  */
 
+import { resolve } from 'path';
+
 export default function (kibana) {
   return new kibana.Plugin({
     uiExports: {
       visTypes: [
         'plugins/input_control_vis/register_vis'
       ],
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
     }
   });
 }
diff --git a/src/legacy/core_plugins/inspector_views/index.js b/src/legacy/core_plugins/inspector_views/index.js
index 2dc5c6b7a983..47c35ce5bf1b 100644
--- a/src/legacy/core_plugins/inspector_views/index.js
+++ b/src/legacy/core_plugins/inspector_views/index.js
@@ -17,13 +17,15 @@
  * under the License.
  */
 
+import { resolve } from 'path';
+
 export default function (kibana) {
   return new kibana.Plugin({
     uiExports: {
       inspectorViews: [
         'plugins/inspector_views/register_views',
       ],
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
     }
   });
 }
diff --git a/src/legacy/core_plugins/kibana/index.js b/src/legacy/core_plugins/kibana/index.js
index 19410b4462e0..af1f8b8bb07c 100644
--- a/src/legacy/core_plugins/kibana/index.js
+++ b/src/legacy/core_plugins/kibana/index.js
@@ -19,6 +19,7 @@
 
 import Promise from 'bluebird';
 import { mkdirp as mkdirpNode } from 'mkdirp';
+import { resolve } from 'path';
 
 import manageUuid from './server/lib/manage_uuid';
 import { searchApi } from './server/routes/api/search';
@@ -72,7 +73,7 @@ export default function (kibana) {
         }),
         main: 'plugins/kibana/kibana',
       },
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
       links: [
         {
           id: 'kibana:discover',
diff --git a/src/legacy/core_plugins/markdown_vis/index.js b/src/legacy/core_plugins/markdown_vis/index.js
index 0f5fb086d115..9ad633073bd2 100644
--- a/src/legacy/core_plugins/markdown_vis/index.js
+++ b/src/legacy/core_plugins/markdown_vis/index.js
@@ -17,6 +17,8 @@
  * under the License.
  */
 
+import { resolve } from 'path';
+
 export default function (kibana) {
 
   return new kibana.Plugin({
@@ -25,7 +27,7 @@ export default function (kibana) {
       visTypes: [
         'plugins/markdown_vis/markdown_vis'
       ],
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
     }
 
   });
diff --git a/src/legacy/core_plugins/metric_vis/index.js b/src/legacy/core_plugins/metric_vis/index.js
index 5ff8547df6d7..58328fdee212 100644
--- a/src/legacy/core_plugins/metric_vis/index.js
+++ b/src/legacy/core_plugins/metric_vis/index.js
@@ -17,6 +17,8 @@
  * under the License.
  */
 
+import { resolve } from 'path';
+
 export default function (kibana) {
 
   return new kibana.Plugin({
@@ -25,7 +27,7 @@ export default function (kibana) {
       visTypes: [
         'plugins/metric_vis/metric_vis'
       ],
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
     }
 
   });
diff --git a/src/legacy/core_plugins/metrics/index.js b/src/legacy/core_plugins/metrics/index.js
index 2b989a5b6c6e..1258cedf8c7f 100644
--- a/src/legacy/core_plugins/metrics/index.js
+++ b/src/legacy/core_plugins/metrics/index.js
@@ -17,6 +17,8 @@
  * under the License.
  */
 
+import { resolve } from 'path';
+
 import fieldsRoutes from './server/routes/fields';
 import visDataRoutes from './server/routes/vis';
 
@@ -28,7 +30,7 @@ export default function (kibana) {
       visTypes: [
         'plugins/metrics/kbn_vis_types'
       ],
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
     },
 
     config(Joi) {
diff --git a/src/legacy/core_plugins/region_map/index.js b/src/legacy/core_plugins/region_map/index.js
index 9083ad9e92ae..bb0815d3f73e 100644
--- a/src/legacy/core_plugins/region_map/index.js
+++ b/src/legacy/core_plugins/region_map/index.js
@@ -17,12 +17,14 @@
  * under the License.
  */
 
+import { resolve } from 'path';
+
 export default function (kibana) {
 
   return new kibana.Plugin({
     uiExports: {
       visTypes: ['plugins/region_map/region_map_vis'],
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
     }
   });
 
diff --git a/src/legacy/core_plugins/status_page/index.js b/src/legacy/core_plugins/status_page/index.js
index d54117625ed3..dd6b086fb00f 100644
--- a/src/legacy/core_plugins/status_page/index.js
+++ b/src/legacy/core_plugins/status_page/index.js
@@ -17,6 +17,8 @@
  * under the License.
  */
 
+import { resolve } from 'path';
+
 export default function (kibana) {
   return new kibana.Plugin({
     uiExports: {
@@ -26,7 +28,7 @@ export default function (kibana) {
         hidden: true,
         url: '/status',
       },
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
     }
   });
 }
diff --git a/src/legacy/core_plugins/table_vis/index.js b/src/legacy/core_plugins/table_vis/index.js
index 3e0cfd1ff555..d6aaae0782d4 100644
--- a/src/legacy/core_plugins/table_vis/index.js
+++ b/src/legacy/core_plugins/table_vis/index.js
@@ -17,6 +17,8 @@
  * under the License.
  */
 
+import { resolve } from 'path';
+
 export default function (kibana) {
 
   return new kibana.Plugin({
@@ -24,7 +26,7 @@ export default function (kibana) {
       visTypes: [
         'plugins/table_vis/table_vis'
       ],
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
     }
   });
 
diff --git a/src/legacy/core_plugins/tagcloud/index.js b/src/legacy/core_plugins/tagcloud/index.js
index 73a716772d92..1cc8052fdcdb 100644
--- a/src/legacy/core_plugins/tagcloud/index.js
+++ b/src/legacy/core_plugins/tagcloud/index.js
@@ -17,12 +17,14 @@
  * under the License.
  */
 
+import { resolve } from 'path';
+
 export default function (kibana) {
 
   return new kibana.Plugin({
     uiExports: {
       visTypes: ['plugins/tagcloud/tag_cloud_vis'],
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
     }
   });
 }
diff --git a/src/legacy/core_plugins/tile_map/index.js b/src/legacy/core_plugins/tile_map/index.js
index 9634e1573f53..6a80d425a350 100644
--- a/src/legacy/core_plugins/tile_map/index.js
+++ b/src/legacy/core_plugins/tile_map/index.js
@@ -17,12 +17,14 @@
  * under the License.
  */
 
+import { resolve } from 'path';
+
 export default function (kibana) {
 
   return new kibana.Plugin({
     uiExports: {
       visTypes: ['plugins/tile_map/tile_map_vis'],
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
     }
   });
 }
diff --git a/src/legacy/core_plugins/timelion/index.js b/src/legacy/core_plugins/timelion/index.js
index 5387d3878989..98ca45b25421 100644
--- a/src/legacy/core_plugins/timelion/index.js
+++ b/src/legacy/core_plugins/timelion/index.js
@@ -17,6 +17,8 @@
  * under the License.
  */
 
+import { resolve } from 'path';
+
 export default function (kibana) {
   return new kibana.Plugin({
     require: ['kibana', 'elasticsearch'],
@@ -29,7 +31,7 @@ export default function (kibana) {
         euiIconType: 'timelionApp',
         main: 'plugins/timelion/app',
       },
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
       hacks: [
         'plugins/timelion/lib/panel_registry',
         'plugins/timelion/panels/timechart/timechart'
diff --git a/src/legacy/core_plugins/vega/index.js b/src/legacy/core_plugins/vega/index.js
index e7ce363d66f9..067dba30a4e1 100644
--- a/src/legacy/core_plugins/vega/index.js
+++ b/src/legacy/core_plugins/vega/index.js
@@ -17,6 +17,8 @@
  * under the License.
  */
 
+import { resolve } from 'path';
+
 export default kibana => new kibana.Plugin({
   id: 'vega',
   require: ['elasticsearch'],
@@ -24,7 +26,7 @@ export default kibana => new kibana.Plugin({
   uiExports: {
     visTypes: ['plugins/vega/vega_type'],
     injectDefaultVars: server => ({ vegaConfig: server.config().get('vega') }),
-    styleSheetPaths: `${__dirname}/public/index.scss`,
+    styleSheetPaths: resolve(__dirname, 'public/index.scss'),
   },
 
   config: (Joi) => Joi.object({
diff --git a/x-pack/plugins/canvas/index.js b/x-pack/plugins/canvas/index.js
index 6528c9f0dd9a..e9e576d063c4 100644
--- a/x-pack/plugins/canvas/index.js
+++ b/x-pack/plugins/canvas/index.js
@@ -23,7 +23,7 @@ export function canvas(kibana) {
         euiIconType: 'canvasApp',
         main: 'plugins/canvas/app',
       },
-      styleSheetPaths: `${__dirname}/public/style/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/style/index.scss'),
       hacks: [
         // window.onerror override
         'plugins/canvas/lib/window_error_handler.js',
diff --git a/x-pack/plugins/cross_cluster_replication/index.js b/x-pack/plugins/cross_cluster_replication/index.js
index 9c0a690933e1..1424bd751ea6 100644
--- a/x-pack/plugins/cross_cluster_replication/index.js
+++ b/x-pack/plugins/cross_cluster_replication/index.js
@@ -16,7 +16,7 @@ export function crossClusterReplication(kibana) {
     publicDir: resolve(__dirname, 'public'),
     require: ['kibana', 'elasticsearch', 'xpack_main', 'remote_clusters', 'index_management'],
     uiExports: {
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
       managementSections: ['plugins/cross_cluster_replication'],
       injectDefaultVars(server) {
         const config = server.config();
diff --git a/x-pack/plugins/graph/index.js b/x-pack/plugins/graph/index.js
index b87bd3f37dee..83134f20d4f8 100644
--- a/x-pack/plugins/graph/index.js
+++ b/x-pack/plugins/graph/index.js
@@ -25,7 +25,7 @@ export function graph(kibana) {
         description: 'Graph exploration',
         main: 'plugins/graph/app',
       },
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
       hacks: ['plugins/graph/hacks/toggle_app_link_in_nav'],
       home: ['plugins/graph/register_feature'],
       mappings
diff --git a/x-pack/plugins/index_lifecycle_management/index.js b/x-pack/plugins/index_lifecycle_management/index.js
index cac3aa371411..f11f3804c07d 100644
--- a/x-pack/plugins/index_lifecycle_management/index.js
+++ b/x-pack/plugins/index_lifecycle_management/index.js
@@ -29,7 +29,7 @@ export function indexLifecycleManagement(kibana) {
     configPrefix: 'xpack.ilm',
     require: ['kibana', 'elasticsearch', 'xpack_main', 'index_management'],
     uiExports: {
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
       managementSections: ['plugins/index_lifecycle_management'],
       injectDefaultVars(server) {
         const config = server.config();
diff --git a/x-pack/plugins/index_management/index.js b/x-pack/plugins/index_management/index.js
index c48eaa6ba15c..bce56be339f3 100644
--- a/x-pack/plugins/index_management/index.js
+++ b/x-pack/plugins/index_management/index.js
@@ -18,7 +18,7 @@ export function indexManagement(kibana)  {
     publicDir: resolve(__dirname, 'public'),
     require: ['kibana', 'elasticsearch', 'xpack_main'],
     uiExports: {
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
       managementSections: [
         'plugins/index_management',
       ]
diff --git a/x-pack/plugins/license_management/index.js b/x-pack/plugins/license_management/index.js
index 1f0748d10d52..1610425506a6 100644
--- a/x-pack/plugins/license_management/index.js
+++ b/x-pack/plugins/license_management/index.js
@@ -14,7 +14,7 @@ export function licenseManagement(kibana)  {
     publicDir: resolve(__dirname, 'public'),
     require: ['kibana', 'elasticsearch'],
     uiExports: {
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
       managementSections: [
         'plugins/license_management',
       ]
diff --git a/x-pack/plugins/ml/index.js b/x-pack/plugins/ml/index.js
index 96e489fa307c..e36646b02938 100644
--- a/x-pack/plugins/ml/index.js
+++ b/x-pack/plugins/ml/index.js
@@ -44,7 +44,7 @@ export const ml = (kibana) => {
         euiIconType: 'machineLearningApp',
         main: 'plugins/ml/app',
       },
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
       hacks: ['plugins/ml/hacks/toggle_app_link_in_nav'],
       home: ['plugins/ml/register_feature'],
       injectDefaultVars(server) {
diff --git a/x-pack/plugins/monitoring/ui_exports.js b/x-pack/plugins/monitoring/ui_exports.js
index 5ff898a61c64..696a6ecb32b7 100644
--- a/x-pack/plugins/monitoring/ui_exports.js
+++ b/x-pack/plugins/monitoring/ui_exports.js
@@ -5,6 +5,7 @@
  */
 
 import { i18n } from '@kbn/i18n';
+import { resolve } from 'path';
 
 /**
  * Configuration of dependency objects for the UI, which are needed for the
@@ -32,5 +33,5 @@ export const getUiExports = () => ({
   },
   hacks: [ 'plugins/monitoring/hacks/toggle_app_link_in_nav' ],
   home: [ 'plugins/monitoring/register_feature' ],
-  styleSheetPaths: `${__dirname}/public/index.scss`,
+  styleSheetPaths: resolve(__dirname, 'public/index.scss'),
 });
diff --git a/x-pack/plugins/remote_clusters/index.js b/x-pack/plugins/remote_clusters/index.js
index 5bfdb8ef8e81..9962899c08a6 100644
--- a/x-pack/plugins/remote_clusters/index.js
+++ b/x-pack/plugins/remote_clusters/index.js
@@ -21,7 +21,7 @@ export function remoteClusters(kibana) {
     publicDir: resolve(__dirname, 'public'),
     require: ['kibana', 'elasticsearch', 'xpack_main', 'index_management'],
     uiExports: {
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
       managementSections: [
         'plugins/remote_clusters',
       ],
diff --git a/x-pack/plugins/rollup/index.js b/x-pack/plugins/rollup/index.js
index 39eea13f9292..81aa7f07ebe5 100644
--- a/x-pack/plugins/rollup/index.js
+++ b/x-pack/plugins/rollup/index.js
@@ -21,7 +21,7 @@ export function rollup(kibana) {
     publicDir: resolve(__dirname, 'public'),
     require: ['kibana', 'elasticsearch', 'xpack_main'],
     uiExports: {
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
       managementSections: [
         'plugins/rollup/crud_app',
       ],
diff --git a/x-pack/plugins/searchprofiler/index.js b/x-pack/plugins/searchprofiler/index.js
index aff28431b58e..107edeb1f408 100644
--- a/x-pack/plugins/searchprofiler/index.js
+++ b/x-pack/plugins/searchprofiler/index.js
@@ -24,7 +24,7 @@ export const searchprofiler = (kibana) => {
       devTools: ['plugins/searchprofiler/app'],
       hacks: ['plugins/searchprofiler/register'],
       home: ['plugins/searchprofiler/register_feature'],
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
     },
     init: function (server) {
       const thisPlugin = this;
diff --git a/x-pack/plugins/security/index.js b/x-pack/plugins/security/index.js
index 5baba2c22232..df39a2cb3bae 100644
--- a/x-pack/plugins/security/index.js
+++ b/x-pack/plugins/security/index.js
@@ -57,7 +57,7 @@ export const security = (kibana) => new kibana.Plugin({
   uiExports: {
     chromeNavControls: ['plugins/security/views/nav_control'],
     managementSections: ['plugins/security/views/management'],
-    styleSheetPaths: `${__dirname}/public/index.scss`,
+    styleSheetPaths: resolve(__dirname, 'public/index.scss'),
     apps: [{
       id: 'login',
       title: 'Login',
diff --git a/x-pack/plugins/spaces/index.ts b/x-pack/plugins/spaces/index.ts
index a0f53b837778..22abf56a1896 100644
--- a/x-pack/plugins/spaces/index.ts
+++ b/x-pack/plugins/spaces/index.ts
@@ -44,7 +44,7 @@ export const spaces = (kibana: any) =>
 
     uiExports: {
       chromeNavControls: ['plugins/spaces/views/nav_control'],
-      styleSheetPaths: `${__dirname}/public/index.scss`,
+      styleSheetPaths: resolve(__dirname, 'public/index.scss'),
       managementSections: ['plugins/spaces/views/management'],
       apps: [
         {
diff --git a/x-pack/plugins/watcher/plugin_definition.js b/x-pack/plugins/watcher/plugin_definition.js
index b023792b42bb..2b46c3569d6a 100644
--- a/x-pack/plugins/watcher/plugin_definition.js
+++ b/x-pack/plugins/watcher/plugin_definition.js
@@ -28,7 +28,7 @@ export const pluginDefinition = {
       'plugins/watcher/sections/watch_list',
       'plugins/watcher/sections/watch_history_item',
     ],
-    styleSheetPaths: `${__dirname}/public/index.scss`,
+    styleSheetPaths: resolve(__dirname, 'public/index.scss'),
     home: ['plugins/watcher/register_feature']
   },
   init: function (server) {