diff --git a/tests/scripts/test_psa_constant_names.py b/tests/scripts/test_psa_constant_names.py
index 6c9d905..f35351c 100755
--- a/tests/scripts/test_psa_constant_names.py
+++ b/tests/scripts/test_psa_constant_names.py
@@ -161,7 +161,9 @@
 def main():
     parser = argparse.ArgumentParser(description=globals()['__doc__'])
     parser.add_argument('--include', '-I',
-                        action='append', default=['tf-psa-crypto/include', 'include'],
+                        action='append', default=['tf-psa-crypto/include',
+                                                  'tf-psa-crypto/drivers/builtin/include',
+                                                  'include'],
                         help='Directory for header files')
     parser.add_argument('--keep-c',
                         action='store_true', dest='keep_c', default=False,