diff --git a/ons-core/ons-client/src/main/java/org/apache/rocketmq/ons/api/impl/rocketmq/ProducerImpl.java b/ons-core/ons-client/src/main/java/org/apache/rocketmq/ons/api/impl/rocketmq/ProducerImpl.java
index cfbe212..08f104d 100644
--- a/ons-core/ons-client/src/main/java/org/apache/rocketmq/ons/api/impl/rocketmq/ProducerImpl.java
+++ b/ons-core/ons-client/src/main/java/org/apache/rocketmq/ons/api/impl/rocketmq/ProducerImpl.java
@@ -231,7 +231,7 @@
                 } else if (e.getCause() instanceof MQBrokerException) {
                     MQBrokerException excep = (MQBrokerException) e.getCause();
                     return new ONSClientException(FAQ.errorMessage(
-                        String.format("Receive a broker exception, Topi=%s, msgId=%s, %s", topic, msgId, excep.getErrorMessage()),
+                        String.format("Receive a broker exception, Topic=%s, msgId=%s, %s", topic, msgId, excep.getErrorMessage()),
                         FAQ.BROKER_RESPONSE_EXCEPTION));
                 }
             } else {