diff --git a/assets/winvistax64.xml b/assets/winvistax64.xml
index 55b3241..3645cd4 100644
--- a/assets/winvistax64.xml
+++ b/assets/winvistax64.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<unattend xmlns="urn:schemas-microsoft-com:unattend">
+<unattend xmlns="urn:schemas-microsoft-com:unattend" xmlns:wcm="http://schemas.microsoft.com/WMIConfig/2002/State">
   <settings pass="windowsPE">
     <component name="Microsoft-Windows-International-Core-WinPE" processorArchitecture="amd64" publicKeyToken="31bf3856ad364e35" language="neutral" versionScope="nonSxS">
       <SetupUILanguage>