diff --git a/rpm/kernel-binary.spec.in b/rpm/kernel-binary.spec.in
index 8fd0179..db52ad2 100644
--- a/rpm/kernel-binary.spec.in
+++ b/rpm/kernel-binary.spec.in
@@ -1030,7 +1030,7 @@ add_dirs_to_filelist >> %my_builddir/kernel-devel.files
     done
 
     if [ %CONFIG_MODULES = y ]; then
-	MODULES=%{lua: print(macros.kernel_module_directory:sub(2))}/%kernelrelease-%build_flavor
+	MODULES=%{lua: print(rpm.expand('%kernel_module_directory'):sub(2))}/%kernelrelease-%build_flavor
 	find "$MODULES" \
 %if 0%{?separate_vdso}
 	    -path "$MODULES/vdso" -prune -o \