diff --git a/StoreBroker.psd1 b/StoreBroker.psd1
index fee71892..6e56519a 100644
--- a/StoreBroker.psd1
+++ b/StoreBroker.psd1
@@ -7,7 +7,7 @@
     CompanyName = 'Microsoft Corporation'
     Copyright = 'Copyright (C) Microsoft Corporation.  All rights reserved.'
 
-    ModuleVersion = '2.1.11'
+    ModuleVersion = '2.1.12'
     Description = 'Provides command-line access to the Windows Store Submission REST API.'
 
     RootModule = 'StoreBroker/StoreIngestionApi.psm1'
diff --git a/StoreBroker/Helpers.ps1 b/StoreBroker/Helpers.ps1
index 35d7a3df..c264fcac 100644
--- a/StoreBroker/Helpers.ps1
+++ b/StoreBroker/Helpers.ps1
@@ -1211,6 +1211,7 @@ function Convert-EnumToString
         [Parameter(
             ValueFromPipeline,
             Mandatory)]
+        [AllowNull()]
         $InputObject
     )