diff --git a/functions/private/Install-WinUtilProgramWinget.ps1 b/functions/private/Install-WinUtilProgramWinget.ps1
index 71886633..0e6ca4dd 100644
--- a/functions/private/Install-WinUtilProgramWinget.ps1
+++ b/functions/private/Install-WinUtilProgramWinget.ps1
@@ -88,7 +88,7 @@ Function Install-WinUtilProgramWinget {
         The Winget ID of the Program that should be uninstalled
         #>
         param (
-            [psobject]$Program
+            [string]$Program
         )
 
         try {
diff --git a/functions/public/Invoke-WPFUnInstall.ps1 b/functions/public/Invoke-WPFUnInstall.ps1
index 7f7da2f4..188d7d88 100644
--- a/functions/public/Invoke-WPFUnInstall.ps1
+++ b/functions/public/Invoke-WPFUnInstall.ps1
@@ -32,7 +32,7 @@ function Invoke-WPFUnInstall {
 
     $ManagerPreference = $sync["ManagerPreference"]
 
-    Invoke-WPFRunspace -ArgumentList @(("PackagesToUninstall", $PackagesToUninstall),("ManagerPreference", $ManagerPreference)) -DebugPreference $DebugPreference -ScriptBlock {
+    Invoke-WPFRunspace -ParameterList @(("PackagesToUninstall", $PackagesToUninstall),("ManagerPreference", $ManagerPreference)) -DebugPreference $DebugPreference -ScriptBlock {
         param($PackagesToUninstall, $ManagerPreference, $DebugPreference)
 
         $packagesSorted = Get-WinUtilSelectedPackages -PackageList $PackagesToUninstall -Preference $ManagerPreference