diff --git a/tools/targets/ARM_MUSCA.py b/tools/targets/ARM_MUSCA.py
index e74894f1a99..d45e9447364 100644
--- a/tools/targets/ARM_MUSCA.py
+++ b/tools/targets/ARM_MUSCA.py
@@ -20,6 +20,11 @@
 from os.path import join as path_join
 import re
 import subprocess
+import sys
+
+# Add PSA TF-M binary utility scripts in system path
+TFM_SCRIPTS = abspath(path_join(dirname(__file__), '..', 'psa', 'tfm', 'bin_utils'))
+sys.path.insert(0, TFM_SCRIPTS)
 
 SCRIPT_DIR = dirname(abspath(__file__))
 MBED_OS_ROOT = abspath(path_join(SCRIPT_DIR, os.pardir, os.pardir))
diff --git a/tools/targets/__init__.py b/tools/targets/__init__.py
index 7898e357d1d..b018cedde58 100644
--- a/tools/targets/__init__.py
+++ b/tools/targets/__init__.py
@@ -26,17 +26,13 @@
 from collections import namedtuple
 from copy import copy
 from future.utils import raise_from
+from os.path import dirname, abspath, join
 from tools.resources import FileType
 from tools.settings import ROOT
 from tools.targets.LPC import patch
 from tools.paths import TOOLS_BOOTLOADERS
 from tools.utils import json_file_to_dict, NotSupportedException
 
-# Add PSA TF-M binary utility scripts in system path
-from os.path import dirname, abspath, join
-TFM_SCRIPTS = abspath(join(dirname(__file__), '..', 'psa', 'tfm', 'bin_utils'))
-sys.path.insert(0, TFM_SCRIPTS)
-
 
 __all__ = ["target", "TARGETS", "TARGET_MAP", "TARGET_NAMES", "CORE_LABELS",
            "CORE_ARCH", "HookError", "generate_py_target", "Target",