diff --git a/build/webpack.release.js b/build/webpack.release.js
index 7ac90bc8..4394e28c 100644
--- a/build/webpack.release.js
+++ b/build/webpack.release.js
@@ -19,6 +19,7 @@ module.exports = {
   entry: {
     'vue-chartjs': './src/index.js'
   },
+  devtool: 'source-map',
   output: {
     filename: './dist/[name].js',
     library: 'VueChartJs',
@@ -82,7 +83,7 @@ module.exports = {
 }
 
 if (process.env.NODE_ENV === 'production') {
-  delete module.exports.devtool
+  // delete module.exports.devtool
   module.exports.plugins = [
     new webpack.DefinePlugin({
       'process.env': {
@@ -92,7 +93,8 @@ if (process.env.NODE_ENV === 'production') {
     new webpack.optimize.UglifyJsPlugin({
       compress: {
         warnings: false
-      }
+      },
+      sourceMap: true
     })
   ]
 }
diff --git a/package.json b/package.json
index 094c12d1..e65a23f3 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
     "e2e": "node test/e2e/runner.js",
     "test": "npm run unit",
     "lint": "eslint --ext .js,.vue src test/unit/specs test/e2e/specs",
-    "release": "webpack --progress --hide-modules --config  ./build/webpack.release.js && cross-env NODE_ENV=production webpack --progress --hide-modules --config  ./build/webpack.release.min.js",
+    "release": "cross-env NODE_ENV=production webpack --progress --hide-modules --config  ./build/webpack.release.js && cross-env NODE_ENV=production webpack --progress --hide-modules --config  ./build/webpack.release.min.js",
     "prepublishOnly": "yarn run lint && yarn run test && yarn run build"
   },
   "dependencies": {},