diff --git a/group/tf-l1-build-clang/fvp-default-clang-bfd:nil b/group/tf-l1-build-clang/fvp-default-clang-bfd:nil
index d52947d..2883213 100644
--- a/group/tf-l1-build-clang/fvp-default-clang-bfd:nil
+++ b/group/tf-l1-build-clang/fvp-default-clang-bfd:nil
@@ -1,6 +1,10 @@
+#!/usr/bin/env bash
 #
-# Copyright (c) 2020, Arm Limited. All rights reserved.
+# Copyright (c) 2020-2022, Arm Limited. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
 
+pre_tf_build() {
+    setup_llvm_toolchain
+}