diff --git a/zfs-backup-mm b/zfs-backup-mm
index 433a6b8..d4fd757 100755
--- a/zfs-backup-mm
+++ b/zfs-backup-mm
@@ -1,4 +1,11 @@
 #!/bin/bash
+
+if [[ ! -f "$1" ]]
+then
+echo "Config file not exists!"
+exit 1
+fi
+
 if [ -z "$2" ]
 then
 lock_variable="/var/lock/zfs-backup-mm"