diff --git a/UnitySetup/UnitySetup.psm1 b/UnitySetup/UnitySetup.psm1
index 5daf628..d439d4f 100644
--- a/UnitySetup/UnitySetup.psm1
+++ b/UnitySetup/UnitySetup.psm1
@@ -1715,7 +1715,7 @@ function Start-UnityEditor {
         [parameter(Mandatory = $false)]
         [switch]$RunEditorTests,
         [parameter(Mandatory = $false)]
-        [ValidateSet('EditMode', 'PlayMode')]
+        [ValidateSet('EditMode', 'PlayMode', 'StandaloneWindows', 'StandaloneWindows64', 'StandaloneLinux64', 'StandaloneOSX', 'iOS', 'Android', 'PS4', 'XboxOne')]
         [string]$TestPlatform,
         [parameter(Mandatory = $false)]
         [string]$TestResults,