diff --git a/pkgs/development/libraries/libvdpau/default.nix b/pkgs/development/libraries/libvdpau/default.nix
index 158106247055..835e2711a776 100644
--- a/pkgs/development/libraries/libvdpau/default.nix
+++ b/pkgs/development/libraries/libvdpau/default.nix
@@ -11,6 +11,8 @@ stdenv.mkDerivation rec {
   buildInputs = with xlibs; [ pkgconfig dri2proto libXext ];
 
   propagatedBuildInputs = [ xlibs.libX11 ];
+  
+  configureFlags = stdenv.lib.optional stdenv.isDarwin [ "--build=x86_64" ];
 
   meta = {
     homepage = http://people.freedesktop.org/~aplattner/vdpau/;