diff --git a/src/Control/Abstract/Primitive.hs b/src/Control/Abstract/Primitive.hs
index 38a4a345b..31551f7df 100644
--- a/src/Control/Abstract/Primitive.hs
+++ b/src/Control/Abstract/Primitive.hs
@@ -1,4 +1,3 @@
-{-# LANGUAGE FunctionalDependencies, UndecidableInstances #-}
 module Control.Abstract.Primitive
   ( define
   , defineClass