diff --git a/libbot/i18n/__init__.py b/libbot/i18n/__init__.py
index 79b23ef..d4488b2 100644
--- a/libbot/i18n/__init__.py
+++ b/libbot/i18n/__init__.py
@@ -10,7 +10,7 @@ from libbot.i18n.classes.bot_locale import BotLocale
 async def _(
     key: str,
     *args: str,
-    locale: str = "en",
+    locale: Union[str, None] = "en",
     locales_root: Union[str, Path] = Path("locale"),
 ) -> Any:
     """Get value of locale string
@@ -18,7 +18,7 @@ async def _(
     ### Args:
         * key (`str`): The last key of the locale's keys path.
         * *args (`list`): Path to key like: `dict[args][key]`.
-        * locale (`str`): Locale to looked up in. Defaults to `"en"`.
+        * locale (`Union[str, None]`): Locale to looked up in. Defaults to `"en"`.
         * locales_root (`Union[str, Path]`, *optional*): Folder where locales are located. Defaults to `Path("locale")`.
 
     ### Returns:
diff --git a/libbot/i18n/sync/__init__.py b/libbot/i18n/sync/__init__.py
index 746a24a..995de03 100644
--- a/libbot/i18n/sync/__init__.py
+++ b/libbot/i18n/sync/__init__.py
@@ -8,7 +8,7 @@ import libbot
 def _(
     key: str,
     *args: str,
-    locale: str = "en",
+    locale: Union[str, None] = "en",
     locales_root: Union[str, Path] = Path("locale"),
 ) -> Any:
     """Get value of locale string
@@ -16,7 +16,7 @@ def _(
     ### Args:
         * key (`str`): The last key of the locale's keys path.
         * *args (`list`): Path to key like: `dict[args][key]`.
-        * locale (`str`): Locale to looked up in. Defaults to `"en"`.
+        * locale (`Union[str, None]`): Locale to looked up in. Defaults to `"en"`.
         * locales_root (`Union[str, Path]`, *optional*): Folder where locales are located. Defaults to `Path("locale")`.
 
     ### Returns: