diff --git a/home-overview.json b/home-overview.json
index b213495..344c4ba 100644
--- a/home-overview.json
+++ b/home-overview.json
@@ -438,7 +438,7 @@
               "uid": "ff1qkncht70n4c"
             },
             "editorMode": "code",
-            "expr": "max(up{job=~\"armub-.*\"}) or 0",
+            "expr": "max(up{job=~\"armub-.*\"}) or vector(0)",
             "instant": true,
             "legendFormat": "",
             "range": false,
@@ -521,7 +521,7 @@
               "uid": "ff1qkncht70n4c"
             },
             "editorMode": "code",
-            "expr": "max(up{job=\"armub-traefik\"}) or 0",
+            "expr": "max(up{job=\"armub-traefik\"}) or vector(0)",
             "instant": true,
             "legendFormat": "",
             "range": false,