diff --git a/namekoplus/chassis-agent/metric-configs/grafana.json.mako b/namekoplus/chassis-agent/metric-configs/grafana.json.mako
index baf6171..c57e072 100644
--- a/namekoplus/chassis-agent/metric-configs/grafana.json.mako
+++ b/namekoplus/chassis-agent/metric-configs/grafana.json.mako
@@ -116,7 +116,7 @@
       "yaxis": {
         "align": false
       }
-    }
+    },
     % endfor
   ],
   "refresh": "3s",