diff --git a/pkgs/development/tools/unity3d/default.nix b/pkgs/development/tools/unity3d/default.nix
index ac1f36c893d0..f962ef54b028 100644
--- a/pkgs/development/tools/unity3d/default.nix
+++ b/pkgs/development/tools/unity3d/default.nix
@@ -1,5 +1,5 @@
 { stdenv, lib, fetchurl, makeWrapper, file, getopt
-, gtk2, gdk_pixbuf, glib, libGLU, nss, nspr, udev, tbb
+, gtk2, gdk_pixbuf, glib, libGL, libGLU, nss, nspr, udev, tbb
 , alsaLib, GConf, cups, libcap, fontconfig, freetype, pango
 , cairo, dbus, expat, zlib, libpng12, nodejs, gnutar, gcc, gcc_32bit
 , libX11, libXcursor, libXdamage, libXfixes, libXrender, libXi
@@ -8,7 +8,7 @@
 
 let
   libPath64 = lib.makeLibraryPath [
-    gcc.cc gtk2 gdk_pixbuf glib libGLU nss nspr
+    gcc.cc gtk2 gdk_pixbuf glib libGL libGLU nss nspr
     alsaLib GConf cups libcap fontconfig freetype pango
     cairo dbus expat zlib libpng12 udev tbb
     libX11 libXcursor libXdamage libXfixes libXrender libXi