diff --git a/tools/src/main/java/org/apache/rocketmq/tools/command/cluster/CLusterSendMsgRTCommand.java b/tools/src/main/java/org/apache/rocketmq/tools/command/cluster/CLusterSendMsgRTCommand.java
index ecbe1f38a54def3368ec02e2f1893f516e29f73d..5038123561bf0aafb880ee0100d3e3323c2c49ae 100644
--- a/tools/src/main/java/org/apache/rocketmq/tools/command/cluster/CLusterSendMsgRTCommand.java
+++ b/tools/src/main/java/org/apache/rocketmq/tools/command/cluster/CLusterSendMsgRTCommand.java
@@ -53,7 +53,7 @@ public class CLusterSendMsgRTCommand implements SubCommand {
 
     @Override
     public Options buildCommandlineOptions(Options options) {
-        Option opt = new Option("a", "amout", true, "message amout | default 100");
+        Option opt = new Option("a", "amount", true, "message amount | default 100");
         opt.setRequired(false);
         options.addOption(opt);
 
diff --git a/tools/src/main/java/org/apache/rocketmq/tools/command/message/CheckMsgSendRTCommand.java b/tools/src/main/java/org/apache/rocketmq/tools/command/message/CheckMsgSendRTCommand.java
index 14cd720615bceb56e624fc69b901f0cccde4df22..404d90d669212cc610530e87e1a23d0fd06164b0 100644
--- a/tools/src/main/java/org/apache/rocketmq/tools/command/message/CheckMsgSendRTCommand.java
+++ b/tools/src/main/java/org/apache/rocketmq/tools/command/message/CheckMsgSendRTCommand.java
@@ -49,7 +49,7 @@ public class CheckMsgSendRTCommand implements SubCommand {
         opt.setRequired(true);
         options.addOption(opt);
 
-        opt = new Option("a", "amout", true, "message amout | default 100");
+        opt = new Option("a", "amount", true, "message amount | default 100");
         opt.setRequired(false);
         options.addOption(opt);