diff --git a/lxc_backup.sh b/lxc_backup.sh
index e05650b..dc0d8d6 100755
--- a/lxc_backup.sh
+++ b/lxc_backup.sh
@@ -20,7 +20,7 @@ then
 	exit 2
 fi
 
-for container in $(${lxccmd} list --format csv -c n | grep -v backup | grep -v test);
+for container in $(${lxccmd} list --format csv -c n | grep -v backup| grep -v "^oo" | grep -v test);
 do 
 	${lxccmd} copy ${container} ${container}-backup
 	${lxccmd} export ${container}-backup ${backuppath}$(date +%Y_%m_%d)-lxc-${container}.tar.gz --optimized-storage