diff --git a/pkg/op/authrequest.go b/pkg/op/authrequest.go
index 851b355..e704c9b 100644
--- a/pkg/op/authrequest.go
+++ b/pkg/op/authrequest.go
@@ -133,7 +133,7 @@ func ValidateAuthReqIDTokenHint(ctx context.Context, idTokenHint string, verifie
 	}
 	claims, err := verifier.Verify(ctx, "", idTokenHint)
 	if err != nil {
-		return "", ErrInvalidRequest("Unfortunately, the id_token_hint is invalid. Please ensure the id_token_hint is complete and accurate, and try again. If you have any questions, you may contact the administrator of the application at:")
+		return "", ErrInvalidRequest("Unfortunately, the id_token_hint is invalid. Please ensure the id_token_hint is complete and accurate, and try again. If you have any questions, you may contact the administrator of the application.")
 	}
 	return claims.Subject, nil
 }