diff --git a/pkgs/tools/networking/vtun/default.nix b/pkgs/tools/networking/vtun/default.nix
index b0397149e60d..09f48d9fa1ad 100644
--- a/pkgs/tools/networking/vtun/default.nix
+++ b/pkgs/tools/networking/vtun/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, openssl, lzo, zlib, yacc, flex }:
+{ stdenv, fetchurl, fetchpatch, openssl, lzo, zlib, yacc, flex }:
 
 stdenv.mkDerivation rec {
   name = "vtun-3.0.3";
@@ -8,7 +8,13 @@ stdenv.mkDerivation rec {
     sha256 = "1jxrxp3klhc8az54d5qn84cbc0vdafg319jh84dxkrswii7vxp39";
   };
 
-  patchPhase = ''
+  patches = [
+    (fetchpatch { url = http://sources.debian.net/data/main/v/vtun/3.0.3-2.2/debian/patches/08-gcc5-inline.patch;
+                 sha256 = "18sys97v2hx6vac5zp3ld7sa6kz4izv3g9dnkm0lflbaxhym2vs1";
+                })
+  ];
+
+  postPatch = ''
     sed -i -e 's/-m 755//' -e 's/-o root -g 0//' Makefile.in
     sed -i '/strip/d' Makefile.in
   '';