diff --git a/webpack.base.config.js b/webpack.base.config.js
index e04857e5e2..8a4047e8f4 100644
--- a/webpack.base.config.js
+++ b/webpack.base.config.js
@@ -51,7 +51,6 @@ module.exports = function exports() {
       }),
       new webpack.optimize.CommonsChunkPlugin('common', COMMON_PATH, Infinity)
     ],
-    devtool: '#inline-source-map',
     module: {
       loaders: [
         {
diff --git a/webpack.dev.config.js b/webpack.dev.config.js
index c9d3035488..7a5c7e6fef 100644
--- a/webpack.dev.config.js
+++ b/webpack.dev.config.js
@@ -4,5 +4,6 @@ var config = base('development');
 
 // development overrides go here
 config.watch = true;
+config.devtool = 'cheap-module-eval-source-map';
 
 module.exports = config;