diff --git a/setup/pe/build_pe.ps1 b/setup/pe/build_pe.ps1
index 4cbc0ac8..5f026ce5 100644
--- a/setup/pe/build_pe.ps1
+++ b/setup/pe/build_pe.ps1
@@ -341,7 +341,7 @@ if ($MyInvocation.InvocationName -ne ".") {
   $RegKey = $Hive.OpenSubKey($RegPath)
   $CurValue = $RegKey.GetValue(
     "Path", $false, [Microsoft.Win32.RegistryValueOptions]::DoNotExpandEnvironmentNames)
-  $NewValue = "$CurValue;%ProgramFiles%\7-Zip;%ProgramFiles%\wimlib"
+  $NewValue = "$CurValue;%ProgramFiles%\7-Zip;%ProgramFiles%\OSFMount;%ProgramFiles%\wimlib"
   Set-ItemProperty -Path "HKLM:\$RegPath" -Name "Path" -Value $NewValue -Force | Out-Null
   $Hive.close()
   $RegKey.close()