diff --git a/pkgs/applications/virtualization/virtualbox/default.nix b/pkgs/applications/virtualization/virtualbox/default.nix
index fbc0cc5ded0..97d3b3c49b5 100644
--- a/pkgs/applications/virtualization/virtualbox/default.nix
+++ b/pkgs/applications/virtualization/virtualbox/default.nix
@@ -197,5 +197,6 @@ in stdenv.mkDerivation {
     homepage = http://www.virtualbox.org/;
     maintainers = [ lib.maintainers.sander ];
     platforms = lib.platforms.linux;
+    inherit extensionPack;
   };
 }