diff --git a/sbin/ocs-onthefly b/sbin/ocs-onthefly
index d69a83f2..3af27e9e 100755
--- a/sbin/ocs-onthefly
+++ b/sbin/ocs-onthefly
@@ -2093,6 +2093,9 @@ parse_ocs_onthefly_cmd_options() {
               if [ -z "$(echo $1 |grep ^-.)" ]; then
                 # skip the -xx option, in case 
                 tgt_dev=$1
+                if [[ "$tgt_dev" =~ ^\/dev\/ ]]; then
+                    tgt_dev=${tgt_dev:5}
+                fi
                 shift
               fi
               [ -z "$tgt_dev" ] && USAGE && exit 1