diff --git a/package.json b/package.json
index 077a672..c10001b 100644
--- a/package.json
+++ b/package.json
@@ -1,12 +1,12 @@
 {
   "name": "ts-lambda-local-dev",
-  "version": "1.4.3",
+  "version": "1.4.5",
   "description": "typescript lambda local development server",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
   "typings": "dist/index.d.ts",
   "scripts": {
-    "compile": "rm -rf dist/ && tsc -d --sourceMap",
+    "compile": "rm -rf dist/ && tsc --sourceMap",
     "lint": "eslint --ext .ts src/",
     "prepublishOnly": "npm run compile"
   },
diff --git a/src/local.lambda.ts b/src/local.lambda.ts
index 27411b4..592482b 100644
--- a/src/local.lambda.ts
+++ b/src/local.lambda.ts
@@ -48,8 +48,8 @@ export class LocalLambda {
         this.enableCORS && this.setCORSHeaders(response);
         response.statusCode = rs.statusCode;
         response.writeHead(rs.statusCode, rs.headers);
-        const decodedResponseBody = Buffer.from(rs.body, rs.isBase64Encoded ? 'base64' : 'utf8');
-        response.end(decodedResponseBody);
+        rs.body &&= Buffer.from(rs.body, rs.isBase64Encoded ? 'base64' : 'utf8');
+        response.end(rs.body);
       });
 
     });
diff --git a/tsconfig.json b/tsconfig.json
index b56a5cb..6ee69bd 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -7,6 +7,7 @@
     "experimentalDecorators": true,
     "esModuleInterop": true,
     "sourceMap": true,
+    "declaration": true,
     "declarationMap": true,
     "strict": true,
     "strictPropertyInitialization": false,