diff --git a/tests/baselines/reference/project/declarationsExportNamespace/amd/declarationsExportNamespace.json b/tests/baselines/reference/project/declarationsExportNamespace/amd/declarationsExportNamespace.json
new file mode 100644
index 0000000000..b9b27b6c02
--- /dev/null
+++ b/tests/baselines/reference/project/declarationsExportNamespace/amd/declarationsExportNamespace.json
@@ -0,0 +1,19 @@
+{
+    "scenario": "declarations_ExportNamespace",
+    "projectRoot": "tests/cases/projects/declarations_ExportNamespace",
+    "inputFiles": [
+        "decl.d.ts",
+        "useModule.ts"
+    ],
+    "declaration": true,
+    "baselineCheck": true,
+    "emittedFiles": [
+        "useModule.js",
+        "useModule.d.ts"
+    ],
+    "resolvedInputFiles": [
+        "lib.d.ts",
+        "decl.d.ts",
+        "useModule.ts"
+    ]
+}
\ No newline at end of file
diff --git a/tests/baselines/reference/project/declarationsExportNamespace/amd/useModule.d.ts b/tests/baselines/reference/project/declarationsExportNamespace/amd/useModule.d.ts
new file mode 100644
index 0000000000..40fb7f3552
--- /dev/null
+++ b/tests/baselines/reference/project/declarationsExportNamespace/amd/useModule.d.ts
@@ -0,0 +1,5 @@
+declare module moduleB {
+    interface IUseModuleA {
+        a: moduleA.A;
+    }
+}
diff --git a/tests/baselines/reference/project/declarationsExportNamespace/amd/useModule.js b/tests/baselines/reference/project/declarationsExportNamespace/amd/useModule.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/tests/baselines/reference/project/declarationsExportNamespace/node/declarationsExportNamespace.json b/tests/baselines/reference/project/declarationsExportNamespace/node/declarationsExportNamespace.json
new file mode 100644
index 0000000000..b9b27b6c02
--- /dev/null
+++ b/tests/baselines/reference/project/declarationsExportNamespace/node/declarationsExportNamespace.json
@@ -0,0 +1,19 @@
+{
+    "scenario": "declarations_ExportNamespace",
+    "projectRoot": "tests/cases/projects/declarations_ExportNamespace",
+    "inputFiles": [
+        "decl.d.ts",
+        "useModule.ts"
+    ],
+    "declaration": true,
+    "baselineCheck": true,
+    "emittedFiles": [
+        "useModule.js",
+        "useModule.d.ts"
+    ],
+    "resolvedInputFiles": [
+        "lib.d.ts",
+        "decl.d.ts",
+        "useModule.ts"
+    ]
+}
\ No newline at end of file
diff --git a/tests/baselines/reference/project/declarationsExportNamespace/node/useModule.d.ts b/tests/baselines/reference/project/declarationsExportNamespace/node/useModule.d.ts
new file mode 100644
index 0000000000..40fb7f3552
--- /dev/null
+++ b/tests/baselines/reference/project/declarationsExportNamespace/node/useModule.d.ts
@@ -0,0 +1,5 @@
+declare module moduleB {
+    interface IUseModuleA {
+        a: moduleA.A;
+    }
+}
diff --git a/tests/baselines/reference/project/declarationsExportNamespace/node/useModule.js b/tests/baselines/reference/project/declarationsExportNamespace/node/useModule.js
new file mode 100644
index 0000000000..e69de29bb2
diff --git a/tests/cases/project/declarationsExportNamespace.json b/tests/cases/project/declarationsExportNamespace.json
new file mode 100644
index 0000000000..550326efca
--- /dev/null
+++ b/tests/cases/project/declarationsExportNamespace.json
@@ -0,0 +1,14 @@
+{
+    "scenario": "declarations_ExportNamespace",
+    "projectRoot": "tests/cases/projects/declarations_ExportNamespace",
+    "inputFiles": [
+        "decl.d.ts",
+        "useModule.ts"
+    ],
+    "declaration": true,
+    "baselineCheck": true,
+    "emittedFiles": [
+        "useModule.js",
+        "useModule.d.ts"
+    ]
+}
\ No newline at end of file
diff --git a/tests/cases/projects/declarations_ExportNamespace/decl.d.ts b/tests/cases/projects/declarations_ExportNamespace/decl.d.ts
new file mode 100644
index 0000000000..62b83defae
--- /dev/null
+++ b/tests/cases/projects/declarations_ExportNamespace/decl.d.ts
@@ -0,0 +1,4 @@
+export interface A {
+    b: number;
+}
+export as namespace moduleA;
\ No newline at end of file
diff --git a/tests/cases/projects/declarations_ExportNamespace/useModule.ts b/tests/cases/projects/declarations_ExportNamespace/useModule.ts
new file mode 100644
index 0000000000..dc297a5a0a
--- /dev/null
+++ b/tests/cases/projects/declarations_ExportNamespace/useModule.ts
@@ -0,0 +1,5 @@
+module moduleB {
+    export interface IUseModuleA {
+        a: moduleA.A;
+    }
+}
\ No newline at end of file