diff --git a/webpack_config/makeConfig.js b/webpack_config/makeConfig.js
index ca4bb814..73b2c4bc 100644
--- a/webpack_config/makeConfig.js
+++ b/webpack_config/makeConfig.js
@@ -286,7 +286,7 @@ module.exports = function(opts = {}) {
     if (process.env.VSCODE_DEBUG) {
       devtool = 'cheap-module-source-map';
     } else {
-      devtool = 'cheap-source-map';
+      devtool = 'cheap-module-eval-source-map';
     }
   }