diff --git a/src/NodeApi.Generator/TypeDefinitionsGenerator.cs b/src/NodeApi.Generator/TypeDefinitionsGenerator.cs
index 9c7b7ef0..e7342289 100644
--- a/src/NodeApi.Generator/TypeDefinitionsGenerator.cs
+++ b/src/NodeApi.Generator/TypeDefinitionsGenerator.cs
@@ -60,6 +60,7 @@ public enum ModuleType
 import dotnet from 'node-api-dotnet';
 import * as path from 'node:path';
 import { fileURLToPath } from 'node:url';
+// @ts-ignore - https://github.com/DefinitelyTyped/DefinitelyTyped/discussions/65252
 import { dlopen, platform, arch } from 'node:process';
 
 const __filename = fileURLToPath(import.meta.url);
@@ -92,6 +93,7 @@ function importAotModule(moduleName) {
     private const string LoadModuleCJS = @"
 const dotnet = require('node-api-dotnet');
 const path = require('node:path');
+// @ts-ignore - https://github.com/DefinitelyTyped/DefinitelyTyped/discussions/65252
 const { dlopen, platform, arch } = require('node:process');
 
 const moduleName = path.basename(__filename, __filename.match(/(\.[cm]?js)?$/)[0]);
@@ -610,8 +612,14 @@ private IEnumerable<MemberInfo> GetExportedMembers()
         }
     }
 
+    /// <summary>
+    /// Generates a type definition for a single type. Primarily for unit-testing purposes.
+    /// </summary>
     public string GenerateTypeDefinition(Type type)
     {
+        // Don't use namespaces when generating a single type definition.
+        _isModule = true;
+
         SourceBuilder s = new();
         ExportType(ref s, type);
         return s.ToString();
diff --git a/test/TestCases/projects/js-esm-module/net472.js b/test/TestCases/projects/js-esm-module/net472.js
index 1c0d9cc0..3a7b00fd 100644
--- a/test/TestCases/projects/js-esm-module/net472.js
+++ b/test/TestCases/projects/js-esm-module/net472.js
@@ -1,5 +1,5 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 
-import 'node-api-dotnet/net472.js';
+import 'node-api-dotnet/net472';
 import './test.js';
diff --git a/test/TestCases/projects/js-esm-module/net6.0.js b/test/TestCases/projects/js-esm-module/net6.0.js
index 17517634..6f5a1b6c 100644
--- a/test/TestCases/projects/js-esm-module/net6.0.js
+++ b/test/TestCases/projects/js-esm-module/net6.0.js
@@ -1,5 +1,5 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 
-import 'node-api-dotnet/net6.0.js';
+import 'node-api-dotnet/net6.0';
 import './test.js';
diff --git a/test/TestCases/projects/js-esm-module/net8.0.js b/test/TestCases/projects/js-esm-module/net8.0.js
index b5dbaa9d..7a6a34c7 100644
--- a/test/TestCases/projects/js-esm-module/net8.0.js
+++ b/test/TestCases/projects/js-esm-module/net8.0.js
@@ -1,5 +1,5 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 
-import 'node-api-dotnet/net8.0.js';
+import 'node-api-dotnet/net8.0';
 import './test.js';
diff --git a/test/TestCases/projects/ts-esm-module/net472.ts b/test/TestCases/projects/ts-esm-module/net472.ts
index 1c0d9cc0..3a7b00fd 100644
--- a/test/TestCases/projects/ts-esm-module/net472.ts
+++ b/test/TestCases/projects/ts-esm-module/net472.ts
@@ -1,5 +1,5 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 
-import 'node-api-dotnet/net472.js';
+import 'node-api-dotnet/net472';
 import './test.js';
diff --git a/test/TestCases/projects/ts-esm-module/net6.0.ts b/test/TestCases/projects/ts-esm-module/net6.0.ts
index 17517634..6f5a1b6c 100644
--- a/test/TestCases/projects/ts-esm-module/net6.0.ts
+++ b/test/TestCases/projects/ts-esm-module/net6.0.ts
@@ -1,5 +1,5 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 
-import 'node-api-dotnet/net6.0.js';
+import 'node-api-dotnet/net6.0';
 import './test.js';
diff --git a/test/TestCases/projects/ts-esm-module/net8.0.ts b/test/TestCases/projects/ts-esm-module/net8.0.ts
index b5dbaa9d..7a6a34c7 100644
--- a/test/TestCases/projects/ts-esm-module/net8.0.ts
+++ b/test/TestCases/projects/ts-esm-module/net8.0.ts
@@ -1,5 +1,5 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 
-import 'node-api-dotnet/net8.0.js';
+import 'node-api-dotnet/net8.0';
 import './test.js';