diff --git a/Crypto/Random/Entropy/Source.hs b/Crypto/Random/Entropy/Source.hs
index 0ef1468..49d7f61 100644
--- a/Crypto/Random/Entropy/Source.hs
+++ b/Crypto/Random/Entropy/Source.hs
@@ -5,8 +5,6 @@
 -- Stability   : experimental
 -- Portability : Good
 --
-{-# LANGUAGE CPP #-}
-{-# LANGUAGE ExistentialQuantification #-}
 module Crypto.Random.Entropy.Source where
 
 import Foreign.Ptr