diff --git a/webpack.config.js b/webpack.config.js
index ddea99a46..ded85f1c1 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -9,12 +9,6 @@ module.exports = {
   },
   resolve: {
     extensions: ['.ts', '.js'],
-    // The debug packages resolves to src/debug.js by default
-    // which doesn't work on IE11 (it's not ES5), but it seems
-    // that the dist/debug.js file does work.
-    alias: {
-      debug: 'debug/dist/debug.js',
-    },
   },
   module: {
     rules: [