diff --git a/scripts/clang_tidy_rules.py b/scripts/clang_tidy_rules.py
index d718af0..2e0b32e 100755
--- a/scripts/clang_tidy_rules.py
+++ b/scripts/clang_tidy_rules.py
@@ -1,4 +1,28 @@
 #!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2017-2023 Arm Limited.
+#
+# SPDX-License-Identifier: MIT
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
 import os
 import re
 import sys
@@ -15,6 +39,7 @@
     flags = ["-std=c++14"]
     flags.append("-DARM_COMPUTE_CPP_SCHEDULER=1")
     flags.append("-DARM_COMPUTE_CL")
+    flags.append("-DARM_COMPUTE_OPENCL_ENABLED")
     if arch == "aarch64":
         flags.append("-DARM_COMPUTE_AARCH64_V8_2")
     return flags