diff --git a/prometheus.go b/prometheus.go
index 4725825..db8a457 100644
--- a/prometheus.go
+++ b/prometheus.go
@@ -200,7 +200,7 @@ var (
 	zoneFirewallEventsCount = prometheus.NewCounterVec(prometheus.CounterOpts{
 		Name: zoneFirewallEventsCountMetricName.String(),
 		Help: "Count of Firewall events",
-	}, []string{"zone", "account", "action", "source", "host", "country"},
+	}, []string{"zone", "account", "action", "source", "rule", "host", "country"},
 	)
 
 	zoneHealthCheckEventsOriginCount = prometheus.NewCounterVec(prometheus.CounterOpts{