diff --git a/pkgs/development/libraries/zlib/default.nix b/pkgs/development/libraries/zlib/default.nix
index 1776e1349e6..7517b2e498a 100644
--- a/pkgs/development/libraries/zlib/default.nix
+++ b/pkgs/development/libraries/zlib/default.nix
@@ -4,12 +4,14 @@ stdenv.mkDerivation rec {
   name = "zlib-1.2.6";
   
   src = fetchurl {
-    urls = [ "http://www.zlib.net/${name}.tar.gz"
-        "http://gentoo.netnitco.net/distfiles/${name}.tar.gz" ];
+    urls = 
+      [ "http://www.zlib.net/${name}.tar.gz"
+        "http://gentoo.netnitco.net/distfiles/${name}.tar.gz" 
+      ];
     sha256 = "06x6m33ls1606ni7275q5z392csvh18dgs55kshfnvrfal45w8r1";
   };
 
-  patches = stdenv.lib.optional (stdenv.system == "i686-cygwin") [ ./no-shared.patch ];
+  patches = [ ];
 
   configureFlags = if static then "" else "--shared";
 
diff --git a/pkgs/development/libraries/zlib/no-shared.patch b/pkgs/development/libraries/zlib/no-shared.patch
deleted file mode 100644
index e26449ffd9f..00000000000
--- a/pkgs/development/libraries/zlib/no-shared.patch
+++ /dev/null
@@ -1,14 +0,0 @@
-Support building the static library only.
-
-diff -ru -x '*~' zlib-1.2.5-orig/Makefile.in zlib-1.2.5/Makefile.in
---- zlib-1.2.5-orig/Makefile.in	2010-04-20 06:12:21.000000000 +0200
-+++ zlib-1.2.5/Makefile.in	2010-07-27 13:25:02.176322291 +0200
-@@ -168,7 +168,7 @@
- 	-@if [ ! -d $(DESTDIR)$(man3dir)      ]; then mkdir -p $(DESTDIR)$(man3dir); fi
- 	-@if [ ! -d $(DESTDIR)$(pkgconfigdir) ]; then mkdir -p $(DESTDIR)$(pkgconfigdir); fi
- 	cp $(STATICLIB) $(DESTDIR)$(libdir)
--	cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)
-+	test -z "$(SHAREDLIBV)" || cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)
- 	cd $(DESTDIR)$(libdir); chmod u=rw,go=r $(STATICLIB)
- 	-@(cd $(DESTDIR)$(libdir); $(RANLIB) libz.a || true) >/dev/null 2>&1
- 	-@cd $(DESTDIR)$(sharedlibdir); if test "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \