diff --git a/src/Microsoft.IdentityModel.Tokens/Validation/AudienceValidationResult.cs b/src/Microsoft.IdentityModel.Tokens/Validation/AudienceValidationResult.cs
index 8b1f60d93..09844f041 100644
--- a/src/Microsoft.IdentityModel.Tokens/Validation/AudienceValidationResult.cs
+++ b/src/Microsoft.IdentityModel.Tokens/Validation/AudienceValidationResult.cs
@@ -63,6 +63,6 @@ public override Exception Exception
         /// <summary>
         /// Gets the audience that was validated or intended to be validated.
         /// </summary>
-        public string Audience { get; } = "null";
+        public string Audience { get; };
     }
 }