diff --git a/config/application.rb b/config/application.rb
index 2e82a8ee656..4ef778ab19c 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -79,7 +79,7 @@ module Discourse
     end]
 
     config.assets.precompile += %w{
-                                 vendor.js admin.js preload-store.js.es6
+                                 vendor.js admin.js preload-store.js
                                  browser-update.js break_string.js ember_jquery.js
                                  pretty-text-bundle.js wizard-application.js
                                  wizard-vendor.js plugin.js plugin-third-party.js
@@ -95,7 +95,7 @@ module Discourse
     initializer :fix_sprockets_loose_file_searcher, after: :set_default_precompile do |app|
       app.config.assets.precompile.delete(Sprockets::Railtie::LOOSE_APP_ASSETS)
       start_path = ::Rails.root.join("app/assets").to_s
-      exclude = ['.hbs', '.js', '.css', '']
+      exclude = ['.es6', '.hbs', '.js', '.css', '']
       app.config.assets.precompile << lambda do |logical_path, filename|
         filename.start_with?(start_path) &&
         !exclude.include?(File.extname(logical_path))