diff --git a/config/modules/transformer/tsconfig.json b/config/modules/transformer/tsconfig.json
index 94c5a6f1e..d7f5822f8 100644
--- a/config/modules/transformer/tsconfig.json
+++ b/config/modules/transformer/tsconfig.json
@@ -1,6 +1,7 @@
 {
   "extends": "../../../tsconfig.base.json",
   "compilerOptions": {
-    "outDir": "../../../dist/transformer"
+    "declaration": true,
+    "outDir": "../../../dist"
   }
 }
diff --git a/config/modules/transformer/webpack.js b/config/modules/transformer/webpack.js
index d1916b82a..352935e8b 100644
--- a/config/modules/transformer/webpack.js
+++ b/config/modules/transformer/webpack.js
@@ -15,10 +15,9 @@ module.exports = merge(base({
         webpackNodeExternals()
     ],
     entry: {
-        index: './src/transformer/transformer.ts',
+        index: './src/transformer/index.ts',
     },
     output: {
         path: path.resolve(__dirname, "../../../dist/transformer"),
-        filename: "index.js"
     }
 });
diff --git a/src/transformer/index.ts b/src/transformer/index.ts
new file mode 100644
index 000000000..cf0352645
--- /dev/null
+++ b/src/transformer/index.ts
@@ -0,0 +1,3 @@
+import { transformer } from './transformer';
+
+export default transformer;
diff --git a/src/transformer/transformer.ts b/src/transformer/transformer.ts
index a78e3a88e..22914af86 100644
--- a/src/transformer/transformer.ts
+++ b/src/transformer/transformer.ts
@@ -5,7 +5,7 @@ import { getMock, getMockForList, storeRegisterMock } from './mock/mock';
 import { MockDefiner } from './mockDefiner/mockDefiner';
 import { SetTypeChecker, TypeChecker } from './typeChecker/typeChecker';
 
-export default function transformer(program: ts.Program, options?: TsAutoMockOptions): ts.TransformerFactory<ts.SourceFile> {
+export function transformer(program: ts.Program, options?: TsAutoMockOptions): ts.TransformerFactory<ts.SourceFile> {
   SetTsAutoMockOptions(options);
   SetTypeChecker(program.getTypeChecker());