diff --git a/pkgs/development/libraries/zlib-mac-fix/default.nix b/pkgs/development/libraries/zlib-mac-fix/default.nix
deleted file mode 100644
index d602e7a0d45..00000000000
--- a/pkgs/development/libraries/zlib-mac-fix/default.nix
+++ /dev/null
@@ -1,12 +0,0 @@
-{stdenv, fetchurl, patch}:
-
-stdenv.mkDerivation {
-  name = "zlib-1.2.1";
-  src = fetchurl {
-    url = http://www.gzip.org/zlib/zlib-1.2.1.tar.gz;
-    md5 = "ef1cb003448b4a53517b8f25adb12452";
-  };
-  configureFlags = "--shared";
-  patches = [./darwin.patch];
-  buildInputs = [patch];
-}
diff --git a/pkgs/development/libraries/zlib-mac-fix/darwin.patch b/pkgs/development/libraries/zlib/darwin.patch
similarity index 100%
rename from pkgs/development/libraries/zlib-mac-fix/darwin.patch
rename to pkgs/development/libraries/zlib/darwin.patch
diff --git a/pkgs/development/libraries/zlib/default.nix b/pkgs/development/libraries/zlib/default.nix
index ca7bc7c7e41..43b6fcb28e7 100644
--- a/pkgs/development/libraries/zlib/default.nix
+++ b/pkgs/development/libraries/zlib/default.nix
@@ -7,4 +7,5 @@ stdenv.mkDerivation {
     md5 = "ef1cb003448b4a53517b8f25adb12452";
   };
   configureFlags = "--shared";
+  patches = [./darwin.patch];
 }
diff --git a/pkgs/system/all-packages-generic.nix b/pkgs/system/all-packages-generic.nix
index ff8a0b0909b..20af32d5c84 100644
--- a/pkgs/system/all-packages-generic.nix
+++ b/pkgs/system/all-packages-generic.nix
@@ -508,14 +508,9 @@ rec {
     inherit fetchurl stdenv;
   };
 
-  zlib = if stdenv.system == "powerpc-darwin" then
-    (import ../development/libraries/zlib-mac-fix) {
-      inherit fetchurl stdenv;
-    }
-  else
-    (import ../development/libraries/zlib) {
-      inherit fetchurl stdenv;
-    };
+  zlib = (import ../development/libraries/zlib) {
+    inherit fetchurl stdenv;
+  };
 
   libjpeg = (import ../development/libraries/libjpeg) {
     inherit fetchurl stdenv;