diff --git a/galera/files/grafana_dashboards/mysql_prometheus.json b/galera/files/grafana_dashboards/mysql_prometheus.json
index df7a853..35ddcb8 100644
--- a/galera/files/grafana_dashboards/mysql_prometheus.json
+++ b/galera/files/grafana_dashboards/mysql_prometheus.json
@@ -72,7 +72,7 @@
           "tableColumn": "",
           "targets": [
             {
-              "expr": "mysql_wsrep_cluster_size{host=\"$host\"}",
+              "expr": "min(mysql_wsrep_cluster_size)",
               "format": "time_series",
               "intervalFactor": 2,
               "legendFormat": "",
@@ -927,4 +927,4 @@
   "timezone": "browser",
   "title": "MySQL",
   "version": 33
-}
\ No newline at end of file
+}