diff --git a/build/webpack.config.js b/build/webpack.config.js
index 59dc12b37..09dee3cd9 100644
--- a/build/webpack.config.js
+++ b/build/webpack.config.js
@@ -94,7 +94,7 @@ function updateConfig(conf, language, index) {
         }
 
         // Add inline source map
-        config.devtool = 'inline-cheap-source-map';
+        config.devtool = 'inline-source-map';
     }
 
     if (isRelease) {