diff --git a/x-pack/tasks/build.ts b/x-pack/tasks/build.ts
index 1b52b073b3ce..96ec1c22687d 100644
--- a/x-pack/tasks/build.ts
+++ b/x-pack/tasks/build.ts
@@ -76,6 +76,7 @@ async function copySourceAndBabelify() {
           '**/node_modules/**',
           '**/public/**/*.{js,ts,tsx,json}',
           '**/{__tests__,__mocks__,__snapshots__}/**',
+          'plugins/*/target/**',
           'plugins/canvas/shareable_runtime/test/**',
           'plugins/telemetry_collection_xpack/schema/**', // Skip telemetry schemas
         ],