diff --git a/Crypto/Cipher/Twofish.hs b/Crypto/Cipher/Twofish.hs
index 7fedd0e..40428ec 100644
--- a/Crypto/Cipher/Twofish.hs
+++ b/Crypto/Cipher/Twofish.hs
@@ -7,6 +7,7 @@ module Crypto.Cipher.Twofish
 import Crypto.Cipher.Twofish.Primitive
 import Crypto.Cipher.Types
 import Crypto.Cipher.Utils
+import Crypto.Internal.Imports
 
 newtype Twofish128 = Twofish128 Twofish