diff --git a/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix b/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
index 990066ab640..2e47f5c25ce 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-7.10.x.nix
@@ -226,17 +226,6 @@ self: super: {
     sha256 = "1lwwvxyhxcmppdapbgpfhwi7xc2z78qir03xjrpzab79p2qyq7br";
   });
 
-  wl-pprint = overrideCabal super.wl-pprint (drv: {
-    patchPhase = "sed -i '113iimport Prelude hiding ((<$>))' Text/PrettyPrint/Leijen.hs";
-  });
-
-  wl-pprint-text = overrideCabal super.wl-pprint-text (drv: {
-    patchPhase = ''
-      sed -i '71iimport Prelude hiding ((<$>))' Text/PrettyPrint/Leijen/Text/Monadic.hs
-      sed -i '119iimport Prelude hiding ((<$>))' Text/PrettyPrint/Leijen/Text.hs
-    '';
-  });
-
   # https://github.com/kazu-yamamoto/unix-time/issues/30
   unix-time = dontCheck super.unix-time;