diff --git a/src/jdk.jcmd/share/classes/sun/tools/jcmd/Arguments.java b/src/jdk.jcmd/share/classes/sun/tools/jcmd/Arguments.java
index 07612622c4e..b3a61254dba 100644
--- a/src/jdk.jcmd/share/classes/sun/tools/jcmd/Arguments.java
+++ b/src/jdk.jcmd/share/classes/sun/tools/jcmd/Arguments.java
@@ -123,11 +123,11 @@ class Arguments {
     }
 
     public static void usage() {
-        System.out.println("Usage: jcmd <pid | main class> [-t] <command ...|PerfCounter.print|-f file>");
+        System.out.println("Usage: jcmd <pid | main class> <[-t] command ...|PerfCounter.print|-f file>");
         System.out.println("   or: jcmd -l                                                    ");
         System.out.println("   or: jcmd <-h | --help>                                         ");
         System.out.println("                                                                  ");
-        System.out.println("  -t flag ensures the dignostic command begins with a timestamp   ");
+        System.out.println("  -t  Show timestamp before running the command.                  ");
         System.out.println("                                                                  ");
         System.out.println("  command must be a valid jcmd command for the selected JVM.      ");
         System.out.println("  Use the command \"help\" to see which commands are available.   ");
diff --git a/src/jdk.jcmd/share/man/jcmd.md b/src/jdk.jcmd/share/man/jcmd.md
index 342056ed156..08e42b30ad4 100644
--- a/src/jdk.jcmd/share/man/jcmd.md
+++ b/src/jdk.jcmd/share/man/jcmd.md
@@ -49,7 +49,7 @@ jcmd - send diagnostic command requests to a running Java Virtual Machine
     Java processes with the specified name of the main class.
 
 `-t`
-:   When used, the diagnostic commands output starts with a timestamp.
+:   Show timestamp before running the command.
 
 *command*
 :   The `command` must be a valid `jcmd` command for the selected JVM. The list
diff --git a/test/jdk/sun/tools/jcmd/usage.out b/test/jdk/sun/tools/jcmd/usage.out
index 406444d70de..ea7dfc8018d 100644
--- a/test/jdk/sun/tools/jcmd/usage.out
+++ b/test/jdk/sun/tools/jcmd/usage.out
@@ -1,8 +1,8 @@
-Usage: jcmd <pid | main class> [-t] <command ...|PerfCounter.print|-f file>
+Usage: jcmd <pid | main class> <[-t] command ...|PerfCounter.print|-f file>
    or: jcmd -l                                                    
    or: jcmd <-h | --help>                                         
                                                                   
-  -t flag ensures the dignostic command begins with a timestamp   
+  -t  Show timestamp before running the command.                  
                                                                   
   command must be a valid jcmd command for the selected JVM.      
   Use the command "help" to see which commands are available.