diff --git a/docker-compose.yml b/docker-compose.yml
index 671f3991..68c74c16 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -215,8 +215,7 @@ services:
       - 9090
     networks:
       - $NET_MONITOR
-    network_mode:
-      - service:wireguard
+    network_mode: "service:wireguard"
     labels:
       org.label-schema.group: "monitoring"
     depends_on: