diff --git a/pkgs/development/libraries/mesa-glu/default.nix b/pkgs/development/libraries/mesa-glu/default.nix
index 0ea73a3a57f..8d433461d0c 100644
--- a/pkgs/development/libraries/mesa-glu/default.nix
+++ b/pkgs/development/libraries/mesa-glu/default.nix
@@ -7,6 +7,9 @@ stdenv.mkDerivation rec {
     url = "ftp://ftp.freedesktop.org/pub/mesa/glu/${name}.tar.bz2";
     sha256 = "04nzlil3a6fifcmb95iix3yl8mbxdl66b99s62yzq8m7g79x0yhz";
   };
+  postPatch = ''
+    echo 'Cflags: -I''${includedir}' >> glu.pc.in
+  '';
 
   buildInputs = [ pkgconfig ];
   propagatedBuildInputs = [ mesa_noglu ];