diff --git a/pkgs/development/libraries/libproxy/default.nix b/pkgs/development/libraries/libproxy/default.nix
index 0e0499251eb9..3b050c3dc6a0 100644
--- a/pkgs/development/libraries/libproxy/default.nix
+++ b/pkgs/development/libraries/libproxy/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchFromGitHub, pkgconfig, cmake, zlib
+{ stdenv, fetchFromGitHub, pkgconfig, cmake, zlib, fetchpatch
 , dbus, networkmanager, spidermonkey_38, pcre, python2, python3
 , SystemConfiguration, CoreFoundation, JavaScriptCore }:
 
@@ -30,6 +30,12 @@ stdenv.mkDerivation rec {
     )
   '';
 
+  patches = stdenv.lib.optional stdenv.isDarwin
+    (fetchpatch {
+      url = "https://github.com/libproxy/libproxy/commit/44158f03f8522116758d335688ed840dfcb50ac8.patch";
+      sha256 = "0axfvb6j7gcys6fkwi9dkn006imhvm3kqr83gpwban8419n0q5v1";
+    });
+
   doCheck = false; # fails 1 out of 10 tests
 
   meta = with stdenv.lib; {