diff --git a/build_kernel_image.sh b/build_kernel_image.sh
index fe90297a52..03b9558820 100755
--- a/build_kernel_image.sh
+++ b/build_kernel_image.sh
@@ -128,6 +128,7 @@ noswap
 i915.modeset=1
 loglevel=7
 cros_secure
+kern_guid=%U
 EOF
   WORK="${WORK} ${FLAGS_working_dir}/config.txt"