diff --git a/pkgs/development/libraries/haskell/SHA2/default.nix b/pkgs/development/libraries/haskell/SHA2/default.nix
index 435d51ae0fed..f02a7458a2f7 100644
--- a/pkgs/development/libraries/haskell/SHA2/default.nix
+++ b/pkgs/development/libraries/haskell/SHA2/default.nix
@@ -1,14 +1,13 @@
-{ cabal, aes, monadsTf, transformers }:
+{ cabal, AES, monadsTf, transformers }:
 
 cabal.mkDerivation (self: {
   pname = "SHA2";
   version = "0.2.5";
   sha256 = "1zs79a327x6myfam3p2vr8lmszcaqnkll2qz8n4sy835vz328j40";
-  buildDepends = [ aes monadsTf transformers ];
+  buildDepends = [ AES monadsTf transformers ];
   meta = {
     description = "Fast, incremental SHA hashing for bytestrings";
     license = self.stdenv.lib.licenses.bsd3;
     platforms = self.ghc.meta.platforms;
   };
 })
-