diff --git a/internal/proxy/impl.go b/internal/proxy/impl.go
index 3818e455a4..112b224735 100644
--- a/internal/proxy/impl.go
+++ b/internal/proxy/impl.go
@@ -3390,6 +3390,7 @@ func (node *Proxy) checkHealthy() bool {
 	return code == internalpb.StateCode_Healthy
 }
 
+//unhealthyStatus returns the proxy not healthy status
 func unhealthyStatus() *commonpb.Status {
 	return &commonpb.Status{
 		ErrorCode: commonpb.ErrorCode_UnexpectedError,