diff --git a/contrib/win32/openssh/install-sshlsa.ps1 b/contrib/win32/openssh/install-sshlsa.ps1
index 887dd2c..76a4087 100644
--- a/contrib/win32/openssh/install-sshlsa.ps1
+++ b/contrib/win32/openssh/install-sshlsa.ps1
@@ -1,4 +1,4 @@
-copy .\ssh-lsa.dll $env:windir\system32
+Copy-Item -Path $PSScriptRoot\ssh-lsa.dll -Destination "$env:windir\system32"
 $subkey = 'SYSTEM\CurrentControlSet\Control\Lsa'
 $value  = 'Authentication Packages'
 $reg = [Microsoft.Win32.RegistryKey]::OpenBaseKey('LocalMachine', 0)