diff --git a/upgrade/Traefik.sh b/upgrade/Traefik.sh
index 2d3dd23cb02ca05207bc89b1275af96414097faf..c4130f47f7d4a7b24134e269c1f15b112ed43a83 100644
--- a/upgrade/Traefik.sh
+++ b/upgrade/Traefik.sh
@@ -11,6 +11,7 @@ else
     echo "Environment file loaded"
 fi
 . $DIR/main.env
+unset DOMAIN
 
 # Add systemd script to control container boot order
 order_systemd_file="/etc/systemd/system/docker-order.service"