diff --git a/src/Microsoft.IdentityModel.Tokens/Validation/AudienceValidationResult.cs b/src/Microsoft.IdentityModel.Tokens/Validation/AudienceValidationResult.cs
index bb1573c1ab..024cca68ba 100644
--- a/src/Microsoft.IdentityModel.Tokens/Validation/AudienceValidationResult.cs
+++ b/src/Microsoft.IdentityModel.Tokens/Validation/AudienceValidationResult.cs
@@ -48,8 +48,7 @@ public override Exception Exception
 
                 HasValidOrExceptionWasRead = true;
                 _exception = ExceptionDetail.GetException();
-                SecurityTokenInvalidAudienceException securityTokenInvalidAudienceException = _exception as SecurityTokenInvalidAudienceException;
-                if (securityTokenInvalidAudienceException != null)
+                if (_exception is SecurityTokenInvalidAudienceException securityTokenInvalidAudienceException)
                 {
                     securityTokenInvalidAudienceException.InvalidAudience = Audience;
                     securityTokenInvalidAudienceException.ExceptionDetail = ExceptionDetail;