diff --git a/scripts/Windows/Scripts/Context.ps1 b/scripts/Windows/Scripts/Context.ps1
index 9868b309e..0e18b547c 100644
--- a/scripts/Windows/Scripts/Context.ps1
+++ b/scripts/Windows/Scripts/Context.ps1
@@ -372,7 +372,7 @@ class Context {
 
     [void] PreventSleepMode() {
         $performanceScheme = "8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c";
-        $currentScheme = [regex]::Match((powercfg /GETACTIVESCHEME), "Power Scheme GUID: ([0-9a-f-]) ").Groups[1].Value;
+        $currentScheme = [regex]::Match((powercfg /GETACTIVESCHEME), "Power Scheme GUID: ([0-9a-f-]+) ").Groups[1].Value;
 
         if ($currentScheme -ne $performanceScheme) {
             Write-Information "Disabling Power Save mode";