diff --git a/src/Data/CryptoID/Class/ImplicitNamespace.hs b/src/Data/CryptoID/Class/ImplicitNamespace.hs
index da82863..0a9df5c 100644
--- a/src/Data/CryptoID/Class/ImplicitNamespace.hs
+++ b/src/Data/CryptoID/Class/ImplicitNamespace.hs
@@ -10,7 +10,7 @@ module Data.CryptoID.Class.ImplicitNamespace
   ( E.MonadCrypto(..)
   , CryptoIDNamespace
   , HasCryptoID
-  , CryptoID, pattern E.CryptoID, E.ciphertext
+  , CryptoID, E.ciphertext
   , encrypt, decrypt
   ) where