diff --git a/inventories/group_vars/wireguard.yml b/inventories/group_vars/wireguard.yml
index ecee2b1f..144b479a 100644
--- a/inventories/group_vars/wireguard.yml
+++ b/inventories/group_vars/wireguard.yml
@@ -15,4 +15,5 @@
       to_port: 51820
       comment: 'wireguard'
       interface: ens18
+      protocol: udp
   ufw_etc_default_default_forward_policy: ACCEPT