diff --git a/src/TestFramework/MSTest.Core/Assertions/StringAssert.cs b/src/TestFramework/MSTest.Core/Assertions/StringAssert.cs
index 1d9bfce9a..52cd825e6 100644
--- a/src/TestFramework/MSTest.Core/Assertions/StringAssert.cs
+++ b/src/TestFramework/MSTest.Core/Assertions/StringAssert.cs
@@ -577,7 +577,7 @@ public static void Matches(string value, Regex pattern)
         /// </exception>
         public static void Matches(string value, Regex pattern, string message)
         {
-            Matches(value, pattern, message);
+            Matches(value, pattern, message, null);
         }
 
         /// <summary>