diff --git a/windows/deployment/update/wufb-reports-do.md b/windows/deployment/update/wufb-reports-do.md
index 580d459ff8..9c2455ffd2 100644
--- a/windows/deployment/update/wufb-reports-do.md
+++ b/windows/deployment/update/wufb-reports-do.md
@@ -92,7 +92,7 @@ There are several calculated values that appear on the Delivery Optimization rep
 In the **Efficiency By Group** subsection, the **GroupID** is displayed as an encoded SHA256 hash. You can create a mapping of original to encoded GroupIDs using the following PowerShell example:
 
 ```powershell
-$text = "<myEncodedGroupID>" ;
+$text = "<myEncodedGroupID>`0"; (the null-terminator (`0) must be included in the string hash)
 
 $hashObj = [System.Security.Cryptography.HashAlgorithm]::Create('sha256') ; $dig = $hashObj.ComputeHash([System.Text.Encoding]::Unicode.GetBytes($text)) ; $digB64 = [System.Convert]::ToBase64String($dig) ; Write-Host "$text ==> $digB64"
 ```