diff --git a/powershell/test-script.ps1 b/powershell/test-script.ps1
index 6a117fc..66255ba 100644
--- a/powershell/test-script.ps1
+++ b/powershell/test-script.ps1
@@ -43,7 +43,7 @@
 
         # Nullable type
         [Parameter(ParameterSetName = 'Set1')]
-        [Nullable[bool]]$IsEnabled
+        [bool]$IsEnabled
     )
 
 process {}