diff --git a/yesod-persistent/test/Yesod/PersistSpec.hs b/yesod-persistent/test/Yesod/PersistSpec.hs
index c8b365aa..260b46c8 100644
--- a/yesod-persistent/test/Yesod/PersistSpec.hs
+++ b/yesod-persistent/test/Yesod/PersistSpec.hs
@@ -1,6 +1,7 @@
 {-# LANGUAGE OverloadedStrings, TemplateHaskell, QuasiQuotes, TypeFamilies #-}
 {-# LANGUAGE EmptyDataDecls, FlexibleContexts, GADTs #-}
 {-# LANGUAGE GeneralizedNewtypeDeriving #-}
+{-# LANGUAGE MultiParamTypeClasses #-}
 {-# LANGUAGE CPP #-}
 module Yesod.PersistSpec where