diff --git a/scripts/mbedtls_dev/test_generation.py b/scripts/mbedtls_dev/test_generation.py
index 57eb2be1fa..682f7b0365 100644
--- a/scripts/mbedtls_dev/test_generation.py
+++ b/scripts/mbedtls_dev/test_generation.py
@@ -193,8 +193,8 @@ def main(args, generator_class: Type[TestGenerator] = TestGenerator):
         # ``generate_xxx_tests.py - $targets`` and it works uniformly whether
         # ``$targets`` is empty or not.
         options.targets = [os.path.basename(re.sub(r'\.data\Z', r'', target))
-                            for target in options.targets
-                            if target != '-']
+                           for target in options.targets
+                           if target != '-']
     else:
         options.targets = sorted(generator.targets)
     for target in options.targets:
diff --git a/tests/scripts/generate_bignum_tests.py b/tests/scripts/generate_bignum_tests.py
index f6136804be..2a8107725e 100755
--- a/tests/scripts/generate_bignum_tests.py
+++ b/tests/scripts/generate_bignum_tests.py
@@ -58,7 +58,7 @@ import itertools
 import sys
 
 from abc import ABCMeta, abstractmethod
-from typing import Callable, Dict, Iterable, Iterator, List, Tuple, TypeVar, cast
+from typing import Iterator, List, Tuple, TypeVar, cast
 
 import scripts_path # pylint: disable=unused-import
 from mbedtls_dev import test_case