diff --git a/example/src/main/java/org/apache/rocketmq/example/rpc/ResponseConsumer.java b/example/src/main/java/org/apache/rocketmq/example/rpc/ResponseConsumer.java
index 5a53538b54..c62c7d4eb6 100644
--- a/example/src/main/java/org/apache/rocketmq/example/rpc/ResponseConsumer.java
+++ b/example/src/main/java/org/apache/rocketmq/example/rpc/ResponseConsumer.java
@@ -29,7 +29,6 @@ import org.apache.rocketmq.client.producer.SendResult;
 import org.apache.rocketmq.client.utils.MessageUtil;
 import org.apache.rocketmq.common.consumer.ConsumeFromWhere;
 import org.apache.rocketmq.common.message.Message;
-import org.apache.rocketmq.common.message.MessageConst;
 import org.apache.rocketmq.common.message.MessageExt;
 import org.apache.rocketmq.remoting.exception.RemotingException;