diff --git a/lib/install/erb.rb b/lib/install/erb.rb
index f253682c8..6918896f1 100644
--- a/lib/install/erb.rb
+++ b/lib/install/erb.rb
@@ -5,7 +5,7 @@
 
 say "Adding erb loader to config/webpack/environment.js"
 insert_into_file Rails.root.join("config/webpack/environment.js").to_s,
-  "const erb =  require('./loaders/erb')\n",
+  "const erb = require('./loaders/erb')\n",
   after: /require\(('|")@rails\/webpacker\1\);?\n/
 
 insert_into_file Rails.root.join("config/webpack/environment.js").to_s,