1 files changed, 3 insertions, 2 deletions
diff --git a/pkgs/applications/virtualization/virtualbox/guest-additions/default.nix b/pkgs/applications/virtualization/virtualbox/guest-additions/default.nix
index 56e025197925..5a97d2a8efd0 100644
--- a/pkgs/applications/virtualization/virtualbox/guest-additions/default.nix
+++ b/pkgs/applications/virtualization/virtualbox/guest-additions/default.nix
@@ -12,19 +12,20 @@ stdenv.mkDerivation {
 
   src = fetchurl {
     url = "http://download.virtualbox.org/virtualbox/${version}/VBoxGuestAdditions_${version}.iso";
-    sha256 = "7458ee5a7121a7d243fd6a7528ba427945d9120c5efc7cd75b3951fb01f09c59";
+    sha256 = (lib.importJSON ../upstream-info.json).guest;
   };
 
   KERN_DIR = "${kernel.dev}/lib/modules/*/build";
 
   hardeningDisable = [ "pic" ];
 
+  NIX_CFLAGS_COMPILE = "-Wno-error=incompatible-pointer-types";
+
   buildInputs = [ patchelf cdrkit makeWrapper dbus ];
 
   installPhase = ''
     mkdir -p $out
     cp -r install/* $out
-
   '';
 
   buildCommand = with xorg; ''