diff --git a/jdk/test/com/sun/tools/attach/StartManagementAgent.java b/jdk/test/com/sun/tools/attach/StartManagementAgent.java
index b2ee68d01b0..9d367c04186 100644
--- a/jdk/test/com/sun/tools/attach/StartManagementAgent.java
+++ b/jdk/test/com/sun/tools/attach/StartManagementAgent.java
@@ -41,7 +41,7 @@ import jdk.testlibrary.Utils;
  * @summary Test for VirtualMachine.startManagementAgent and VirtualMachine.startLocalManagementAgent
  * @library /lib/testlibrary
  * @run build Application SimpleProvider jdk.testlibrary.*
- * @run main StartManagementAgent
+ * @run main/timeout=300 StartManagementAgent
  */
 
 /*