diff --git a/pkgs/os-specific/linux/opengl/xorg-sys/default.nix b/pkgs/os-specific/linux/opengl/xorg-sys/default.nix
index 5bb757a73a0..7da890ae7e3 100644
--- a/pkgs/os-specific/linux/opengl/xorg-sys/default.nix
+++ b/pkgs/os-specific/linux/opengl/xorg-sys/default.nix
@@ -11,6 +11,7 @@
 stdenv.mkDerivation {
   name = "xorg-sys-opengl-3";
   builder = ./builder.sh;
-  neededLibs = [xorg.libXxf86vm xorg.libXext expat libdrm stdenv.cc.cc];
+  neededLibs = map (p: p.out)
+    [xorg.libXxf86vm xorg.libXext expat libdrm stdenv.cc.cc];
 }