diff --git a/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix b/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
index 625acac80462..69bd3844c9c4 100644
--- a/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
+++ b/pkgs/development/haskell-modules/configuration-ghc-8.8.x.nix
@@ -85,10 +85,6 @@ self: super: {
     url = "https://raw.githubusercontent.com/hvr/head.hackage/master/patches/regex-posix-0.95.2.patch";
     sha256 = "006yli58jpqp786zm1xlncjsilc38iv3a09r4pv94l587sdzasd2";
   });
-  zlib = appendPatch super.zlib (pkgs.fetchpatch {
-    url = "https://raw.githubusercontent.com/hvr/head.hackage/master/patches/zlib-0.6.2.patch";
-    sha256 = "13fy730z9ihyc9kw3qkh642mi0bdbd7bz01dksj1zz845pr9jjif";
-  });
   haskell-src-exts = appendPatch super.haskell-src-exts (pkgs.fetchpatch {
     url = "https://raw.githubusercontent.com/hvr/head.hackage/master/patches/haskell-src-exts-1.21.0.patch";
     sha256 = "0alb28hcsp774c9s73dgrajcb44vgv1xqfg2n5a9y2bpyngqscs3";