diff --git a/Crypto/Cipher/ChaChaPoly1305.hs b/Crypto/Cipher/ChaChaPoly1305.hs
index 4bc622c..ed8b99e 100644
--- a/Crypto/Cipher/ChaChaPoly1305.hs
+++ b/Crypto/Cipher/ChaChaPoly1305.hs
@@ -1,5 +1,3 @@
-{-# LANGUAGE GeneralizedNewtypeDeriving #-}
-
 -- |
 -- Module      : Crypto.Cipher.ChaChaPoly1305
 -- License     : BSD-style