diff --git a/runtime/onert/core/src/backend/builtin/ConstantInitializer.h b/runtime/onert/core/src/backend/builtin/ConstantInitializer.h
deleted file mode 100644
index 6b8eb3e9d3d..00000000000
--- a/runtime/onert/core/src/backend/builtin/ConstantInitializer.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Copyright (c) 2020 Samsung Electronics Co., Ltd. All Rights Reserved
- *
- * 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.
- */
-
-#ifndef __ONERT_COMPILER_BUILTIN_CONSTANT_INITIALIZER_H__
-#define __ONERT_COMPILER_BUILTIN_CONSTANT_INITIALIZER_H__
-
-#include <backend/basic/ConstantInitializer.h>
-
-namespace onert
-{
-namespace backend
-{
-namespace builtin
-{
-
-using ConstantInitializer = basic::ConstantInitializer;
-
-} // namespace builtin
-} // namespace backend
-} // namespace onert
-
-#endif // __ONERT_COMPILER_BUILTIN_CONSTANT_INITIALIZER_H__