diff --git a/src/ALZ/Private/Tools/Get-TerraformTool.ps1 b/src/ALZ/Private/Tools/Get-TerraformTool.ps1
index 52584f0..020c01a 100644
--- a/src/ALZ/Private/Tools/Get-TerraformTool.ps1
+++ b/src/ALZ/Private/Tools/Get-TerraformTool.ps1
@@ -39,10 +39,12 @@ function Get-TerraformTool {
         }
     }
 
+    $osArchitecture = Get-OSArchitecture
+
     $unzipdir = Join-Path -Path $toolsPath -ChildPath "terraform_$version"
     if (Test-Path $unzipdir) {
         Write-Verbose "Terraform $version already installed, adding to Path."
-        if($os -eq "windows") {
+        if($osArchitecture.os -eq "windows") {
             $env:PATH = "$($unzipdir);$env:PATH"
         } else {
             $env:PATH = "$($unzipdir):$env:PATH"
@@ -50,8 +52,6 @@ function Get-TerraformTool {
         return
     }
 
-    $osArchitecture = Get-OSArchitecture
-
     $zipfilePath = "$unzipdir.zip"
 
     $url = $release.builds | Where-Object { $_.arch -eq $osArchitecture.architecture -and $_.os -eq $osArchitecture.os } | Select-Object -First 1 -ExpandProperty url