diff --git a/src/entity_manager/expression.hpp b/src/entity_manager/expression.hpp
index 6677b2d..141b870 100644
--- a/src/entity_manager/expression.hpp
+++ b/src/entity_manager/expression.hpp
@@ -1,19 +1,5 @@
-/*
-// Copyright (c) 2017 Intel Corporation
-// Copyright (c) 2022 IBM Corp.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-*/
+// SPDX-License-Identifier: Apache-2.0
+// SPDX-FileCopyrightText: Copyright 2017 Intel Corporation, 2022 IBM Corp.
 
 #pragma once