diff --git a/Winget-AutoUpdate/winget-upgrade.ps1 b/Winget-AutoUpdate/winget-upgrade.ps1
index f5c596c..1052a25 100644
--- a/Winget-AutoUpdate/winget-upgrade.ps1
+++ b/Winget-AutoUpdate/winget-upgrade.ps1
@@ -9,7 +9,7 @@ Get-ChildItem "$WorkingDir\functions" | ForEach-Object { . $_.FullName }
 <# MAIN #>
 
 #Check if running account is system or interactive logon
-$Script:IsSystem = ![System.Security.Principal.WindowsIdentity]::GetCurrent().IsSystem
+$Script:IsSystem = [System.Security.Principal.WindowsIdentity]::GetCurrent().IsSystem
 
 #Run log initialisation function
 Start-Init