diff --git a/coin/provisioning/common/windows/install-openssh.ps1 b/coin/provisioning/common/windows/install-openssh.ps1
index 1f746b14..4380cf02 100644
--- a/coin/provisioning/common/windows/install-openssh.ps1
+++ b/coin/provisioning/common/windows/install-openssh.ps1
@@ -10,17 +10,17 @@ $temp = "$env:tmp"
 $cpu_arch = Get-CpuArchitecture
 switch ($cpu_arch) {
     arm64 {
-        $zipPackage = "OpenSSH-ARM64"
+        $base_file_name = "OpenSSH-ARM64"
         $sha1 = "ca3e8f44a550b7ae71c8e122acd4ed905d66feb0"
         Break
     }
     x64 {
-        $zipPackage = "OpenSSH-Win64"
+        $base_file_name = "OpenSSH-Win64"
         $sha1 = "1397d40d789ae0911b3cc818b9dcd9321fed529b"
         Break
     }
     x86 {
-        $zipPackage = "OpenSSH-Win32"
+        $base_file_name = "OpenSSH-Win32"
         $sha1 = "4642C62F72C108C411E27CE282A863791B63329B"
         Break
     }
@@ -29,20 +29,27 @@ switch ($cpu_arch) {
     }
 }
 
-Write-Host "Fetching $zipPackage $version..."
-$url_cache = "http://ci-files01-hki.ci.qt.io/input/windows/openssh/" + $version + "/" + $zipPackage + ".zip"
-$url_official = "https://github.com/PowerShell/Win32-OpenSSH/releases/download/" + $version + "/" + $zipPackage + ".zip"
-Download $url_official $url_cache "$temp\$zipPackage"
-Verify-Checksum "$temp\$zipPackage" $sha1
+Write-Host "Fetching $base_file_name $version..."
+$url_cache = "http://ci-files01-hki.ci.qt.io/input/windows/openssh/$version/$base_file_name.zip"
+$url_official = "https://github.com/PowerShell/Win32-OpenSSH/releases/download/$version/$base_file_name.zip"
+$output_zip_file = "$temp\$base_file_name.zip"
+Download $url_official $url_cache $output_zip_file
+Verify-Checksum $output_zip_file $sha1
 
 Write-Host "Extracting the package"
-Extract-7Zip "$temp\$zipPackage" C:\"Program Files"
+Extract-7Zip $output_zip_file "C:\Program Files"
+# We assume the incoming zip contains exactly one directory, named the same
+# as the base file name of th zip.
+$output_dir = "C:\Program Files\$base_file_name"
+if (-not (Test-Path $output_dir -PathType Container)) {
+    throw "Error. Expected output directory '$output_dir' does not exist."
+}
 
-Write-Host "Installing $zipPackage $version..."
-$path = "C:\Program Files\" + $zipPackage + "\install-sshd.ps1"
+Write-Host "Installing $base_file_name $version..."
+$install_script = "$output_dir\install-sshd.ps1"
 
 # Installation done as shown at https://github.com/PowerShell/Win32-OpenSSH/wiki/Install-Win32-OpenSSH
-powershell.exe -ExecutionPolicy Bypass -File $path
+powershell.exe -ExecutionPolicy Bypass -File $install_script
 netsh advfirewall firewall add rule name=sshd dir=in action=allow protocol=TCP localport=22
 net start sshd
 Set-Service sshd -StartupType Automatic