diff --git a/common/constant/key.go b/common/constant/key.go
index fc9c7af366ffe5df3d7b427677804918cbfe8209..3ba8eed8df17472832c49f8fe147707f59144d92 100644
--- a/common/constant/key.go
+++ b/common/constant/key.go
@@ -158,7 +158,7 @@ const (
 	// ConditionAppRouterName Specify listenable application router name
 	ConditionAppRouterName = "app"
 	// ListenableRouterName Specify listenable router name
-	ListenableRouterName = "listenable"
+	ListenableRouterName  = "listenable"
 	HealthCheckRouterName = "health_check"
 
 	// ConditionRouterRuleSuffix Specify condition router suffix