diff --git a/assets/win7x64.xml b/assets/win7x64.xml
index 5534b0d..a6888ab 100644
--- a/assets/win7x64.xml
+++ b/assets/win7x64.xml
@@ -295,7 +295,7 @@
           <CommandLine>reg.exe add "HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Terminal Services" /v "fAllowUnlistedRemotePrograms" /t REG_DWORD /d 1 /f</CommandLine>
           <Description>Enable RemoteAPP to launch unlisted programs</Description>
         </SynchronousCommand>
-        <SynchronousCommand>
+        <SynchronousCommand wcm:action="add">
           <Order>15</Order>
           <CommandLine>netsh advfirewall firewall set rule group="Network Discovery" new enable=Yes</CommandLine>
           <Description>Enable Network Discovery and File Sharing</Description>