diff --git a/tuto3.yml b/tuto3.yml
index 4672b9d..789b20c 100644
--- a/tuto3.yml
+++ b/tuto3.yml
@@ -479,7 +479,8 @@ files:
 
   - path: /usr/sbin/join-p0m
     contents: |
-      [ -f "/var/lib/adlin/wireguard/adlin.token" ] && echo "A token is already defined. You'll erase it it you continue."
+      #!/bin/sh
+      [ -s "/var/lib/adlin/wireguard/adlin.token" ] && echo "A token is already defined. You'll erase it it you continue."
       echo -n "Please copy your token here: "
       read WGTOKEN
       mkdir -p /var/lib/adlin/wireguard/