diff --git a/common.rc b/common.rc
index 92970abb..6be40f6d 100644
--- a/common.rc
+++ b/common.rc
@@ -690,6 +690,7 @@ _check_xfs_filesystem()
 	exit 1
     fi
 
+    extra_mount_options=""
     device=$1
     if [ "$2" != "none" ]; then
        	extra_log_options="-l$2"