diff --git a/config/application.rb b/config/application.rb
index f7fbd10c0ef..ff30de69f48 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -32,12 +32,12 @@ module Discourse
     config.assets.precompile += ['admin.js', 'admin.css', 'shiny/shiny.css', 'preload_store.js', 'jquery.js']
 
     # Precompile all defer
-    Dir.glob("app/assets/javascripts/defer/*.js").each do |file|
-      config.assets.precompile << file
+    Dir.glob("#{config.root}/app/assets/javascripts/defer/*.js").each do |file|
+      config.assets.precompile << "defer/#{file.match(/([a-z_A-Z]+\.js)$/)[1]}"
     end
 
     # Precompile all available locales
-    Dir.glob("app/assets/javascripts/locales/*.js.erb").each do |file|
+    Dir.glob("#{config.root}/app/assets/javascripts/locales/*.js.erb").each do |file|
       config.assets.precompile << "locales/#{file.match(/([a-z_A-Z]+\.js)\.erb$/)[1]}"
     end