diff --git a/zb-snap b/zb-snap
index 3b32460..f8b6fd8 100755
--- a/zb-snap
+++ b/zb-snap
@@ -5,4 +5,4 @@ if [ -z "$1" ] ; then
 	exit 1
 fi
 
-exec zfs snapshot "${1}@zb-`date '+%F %T %z' |tr + p`"
+echo exec zfs snapshot "${1}@zb-`date '+%F %T %z' |tr '+ ' 'p_'`"