diff --git a/group/tf-l1-build-clang/fvp-default-clang:nil b/group/tf-l1-build-clang/fvp-default-clang:nil
index aab4796..0428f17 100644
--- a/group/tf-l1-build-clang/fvp-default-clang:nil
+++ b/group/tf-l1-build-clang/fvp-default-clang:nil
@@ -1,6 +1,10 @@
+#!/usr/bin/env bash
 #
-# Copyright (c) 2019-2020 Arm Limited. All rights reserved.
+# Copyright (c) 2019-2022 Arm Limited. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
+pre_tf_build() {
+    setup_llvm_toolchain
+}