diff --git a/scripts/mbedtls_dev/psa_information.py b/scripts/mbedtls_dev/psa_information.py
index 2287ae13ee..ea8c12341c 100644
--- a/scripts/mbedtls_dev/psa_information.py
+++ b/scripts/mbedtls_dev/psa_information.py
@@ -112,12 +112,12 @@ ECB_NO_PADDING_DEP = ['!MBEDTLS_BLOCK_CIPHER_NO_DECRYPT']
 DEPENDENCY_FROM_DESCRIPTION = OrderedDict()
 DEPENDENCY_FROM_DESCRIPTION[AES_128BIT_ONLY_DEP_REGEX] = AES_128BIT_ONLY_DEP
 DEPENDENCY_FROM_DESCRIPTION[ECB_NO_PADDING_DEP_REGEX] = ECB_NO_PADDING_DEP
-def generate_description_dependencies(
-        dep_list: List[str],
+def generate_deps_from_description(
         description: str
     ) -> List[str]:
     """Return additional dependencies based on test case description and REGEX.
     """
+    dep_list = []
     for regex, deps in DEPENDENCY_FROM_DESCRIPTION.items():
         if re.search(regex, description):
             dep_list += deps
diff --git a/tests/scripts/generate_psa_tests.py b/tests/scripts/generate_psa_tests.py
index 04c36f7f9e..a6683f51da 100755
--- a/tests/scripts/generate_psa_tests.py
+++ b/tests/scripts/generate_psa_tests.py
@@ -508,8 +508,7 @@ class StorageFormat:
             key.alg.string, key.alg2.string,
         )
         dependencies = psa_information.finish_family_dependencies(dependencies, key.bits)
-        dependencies = psa_information.generate_description_dependencies(dependencies,
-                                                                         key.description)
+        dependencies += psa_information.generate_deps_from_description(key.description)
         dependencies = psa_information.fix_key_pair_dependencies(dependencies, 'BASIC')
         tc.set_dependencies(dependencies)
         tc.set_function('key_storage_' + verb)