diff --git a/apps/assets/automations/methods.py b/apps/assets/automations/methods.py
index b0ad883fd..1453cc7a1 100644
--- a/apps/assets/automations/methods.py
+++ b/apps/assets/automations/methods.py
@@ -40,7 +40,7 @@ def get_platform_automation_methods(path, lang=None):
                 continue
 
             with open(path, 'r', encoding='utf8') as f:
-                manifest = yaml_load_with_i18n(f, lang)
+                manifest = yaml_load_with_i18n(f, lang=lang)
                 check_platform_method(manifest, path)
                 manifest['dir'] = os.path.dirname(path)
                 manifest['params_serializer'] = generate_serializer(manifest)
diff --git a/apps/common/utils/yml.py b/apps/common/utils/yml.py
index c5221b948..4250f016e 100644
--- a/apps/common/utils/yml.py
+++ b/apps/common/utils/yml.py
@@ -12,7 +12,7 @@ def translate(key, i18n, lang):
     return lang_data.get(lang, key)
 
 
-def yaml_load_with_i18n(stream, lang):
+def yaml_load_with_i18n(stream, lang=None):
     ori_text = stream.read()
     stream = io.StringIO(ori_text)
     yaml_data = yaml.safe_load(stream)