diff --git a/aiohttp_pydantic/oas/view.py b/aiohttp_pydantic/oas/view.py
index b2fc9e5..e75ac7f 100644
--- a/aiohttp_pydantic/oas/view.py
+++ b/aiohttp_pydantic/oas/view.py
@@ -26,7 +26,7 @@ def _handle_optional(type_):
     """
     if typing.get_origin(type_) is typing.Union:
         args = typing.get_args(type_)
-        if len(args) == 2 and type(None) in args:
+        if len(args) >= 2 and type(None) in args:
             return next(iter(set(args) - {type(None)}))
     return None