diff --git a/pkgs/os-specific/linux/gcadapter-oc-kmod/default.nix b/pkgs/os-specific/linux/gcadapter-oc-kmod/default.nix
index ab2e099d970..bcea220cc96 100644
--- a/pkgs/os-specific/linux/gcadapter-oc-kmod/default.nix
+++ b/pkgs/os-specific/linux/gcadapter-oc-kmod/default.nix
@@ -19,7 +19,7 @@ in stdenv.mkDerivation rec {
 
   nativeBuildInputs = kernel.moduleBuildDependencies;
 
-  makeFlags = [
+  makeFlags = kernel.makeFlags ++ [
     "KERNEL_SOURCE_DIR=${kernel.dev}/${kerneldir}/build"
     "INSTALL_MOD_PATH=$(out)"
   ];