diff --git a/config/application.rb b/config/application.rb
index 4b807dfac73..1d2de896db4 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -61,6 +61,7 @@ module Discourse
     # Custom directories with classes and modules you want to be autoloadable.
     config.autoload_paths += Dir["#{config.root}/app/serializers"]
     config.autoload_paths += Dir["#{config.root}/lib/validators/"]
+    config.autoload_paths += Dir["#{config.root}/lib"]
     config.autoload_paths += Dir["#{config.root}/app"]
 
     # Only load the plugins named here, in the order given (default is alphabetical).