diff --git a/scripts/mkimage b/scripts/mkimage
index 82af32119f..1bcf3078f0 100755
--- a/scripts/mkimage
+++ b/scripts/mkimage
@@ -55,6 +55,7 @@ if [ "$UEFI" = "yes" ] ; then
   UUID_2=$(date '+%M%S')
   FAT_VOL_ID="${UUID_1}${UUID_2}"
   UUID_SYSTEM="${UUID_1}-${UUID_2}"
+  DISK="$TARGET_IMG/$IMAGE_NAME-efi.img"
 fi
 
 # ensure loopX not in use