diff --git a/README.md b/README.md
index 72478b593..877a2de68 100644
--- a/README.md
+++ b/README.md
@@ -147,12 +147,12 @@ Suppressing Rules
 =================
 
 You can suppress a rule by decorating a script/function or script/function parameter with .NET's [SuppressMessageAttribute](https://msdn.microsoft.com/en-us/library/system.diagnostics.codeanalysis.suppressmessageattribute.aspx).
-`SuppressMessageAttribute`'s constructor takes two parameters: a category and a check ID. Set the `categoryID` parameter to the name of the rule you want to suppress and set the `checkID` parameter to a null or empty string:
+`SuppressMessageAttribute`'s constructor takes two parameters: a category and a check ID. Set the `categoryID` parameter to the name of the rule you want to suppress and set the `checkID` parameter to a null or empty string. You can optionally add a third named parameter with a justification for suppressing the message:
 
 ``` PowerShell
 function SuppressMe()
 {
-    [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSProvideCommentHelp", "")]
+    [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSProvideCommentHelp", "", Justification="Just an example")]
     param()
 
     Write-Verbose -Message "I'm making a difference!"