diff --git a/src/XMonad/Core.hs b/src/XMonad/Core.hs
index 2d88f89..ae89ee4 100644
--- a/src/XMonad/Core.hs
+++ b/src/XMonad/Core.hs
@@ -1,5 +1,5 @@
 {-# LANGUAGE ExistentialQuantification, FlexibleInstances, GeneralizedNewtypeDeriving,
-             MultiParamTypeClasses, TypeSynonymInstances, CPP, DeriveDataTypeable #-}
+             MultiParamTypeClasses, TypeSynonymInstances, DeriveDataTypeable #-}
 
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