[ossec-list] Can't Overwrite Rule 554

[JJ Yu]

I was write rule in ossec_rules.xml. but it is not effect. Please help~~~
as :
  <rule id="554" level="9">

    <category>ossec</category>

    <decoded_as>syscheck_new_entry</decoded_as>

    <description>File added to the system.</description>

    <group>syscheck,</group>

  </rule>


 <rule id="554" level="9" overwrite="yes">

    <category>ossec</category>

    <decoded_as>syscheck_new_entry</decoded_as>

    <match>^keylog.exe^</match> 

    <description>File added to the system.(Intrusion)</description>

    <group>syscheck,</group>

  </rule>