diff --git a/cluster/router/healthcheck/default_health_check.go b/cluster/router/healthcheck/default_health_check.go
index 409408bb942485f71a782f9240e69c82410ab8b9..9757f22768fa0d5ea19ae37ce74555e794653cbe 100644
--- a/cluster/router/healthcheck/default_health_check.go
+++ b/cluster/router/healthcheck/default_health_check.go
@@ -96,6 +96,7 @@ func (c *DefaultHealthChecker) getCircuitBreakerSleepWindowTime(status *protocol
 	return int64(sleepWindow)
 }
 
+
 // GetRequestSuccessiveFailureThreshold return the requestSuccessiveFailureThreshold bound to this DefaultHealthChecker
 func (c *DefaultHealthChecker) GetRequestSuccessiveFailureThreshold() int32 {
 	return c.requestSuccessiveFailureThreshold