diff --git a/modules/gateway/agent.go b/modules/gateway/agent.go
index c6b90475c..38cd4c2a3 100644
--- a/modules/gateway/agent.go
+++ b/modules/gateway/agent.go
@@ -257,7 +257,7 @@ func (this *Agent) messageDistribution(msg *pb.UserMessage) (err error) {
 				servicePath = rule
 			}
 		} else {
-			this.gateway.Error("messageDistribution rule is empty!")
+			this.gateway.Errorf("messageDistribution mtype:%s stype:%s rule:%s is empty!", req.MainType, req.SubType, rule)
 			return
 		}
 	} else {