diff --git a/include/consts b/include/consts
index e65af4bd..486da308 100644
--- a/include/consts
+++ b/include/consts
@@ -112,6 +112,7 @@ unset LANG
     GROUP_NAME=""
     GRPCKBINARY=""
     GRSEC_FOUND=0
+    GRUBCONFFILE=""
     GRUB2INSTALLBINARY=""
     HAS_SYSTEMD=0
     HEADBINARY=""