From 8772518fa5331361aa40573fd000752e7e5f174f Mon Sep 17 00:00:00 2001
From: Alex Root Junior <jroot.junior@gmail.com>
Date: Thu, 28 Jun 2018 19:26:00 +0300
Subject: [PATCH] Oops. This method renamed.

---
 aiogram/dispatcher/filters/builtin.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/aiogram/dispatcher/filters/builtin.py b/aiogram/dispatcher/filters/builtin.py
index d9588481..afac9feb 100644
--- a/aiogram/dispatcher/filters/builtin.py
+++ b/aiogram/dispatcher/filters/builtin.py
@@ -127,7 +127,7 @@ class StateFilter(BaseFilter):
             if isinstance(item, State):
                 states.append(item.state)
             elif inspect.isclass(item) and issubclass(item, StatesGroup):
-                states.extend(item.all_state_names)
+                states.extend(item.all_states_names)
             else:
                 states.append(item)
         self.states = states