diff --git a/app/bot/__init__.py b/app/bot/__init__.py
index f2641ce..886a75d 100644
--- a/app/bot/__init__.py
+++ b/app/bot/__init__.py
@@ -39,8 +39,8 @@ class UserDataMiddleware(BaseMiddleware):
                     username=update_body.from_user.username,
                     lang_code='en',
                     last_use=datetime.now(),
-                    meta=dict(first_name=update_body.from_user.first_name,
-                                  last_name=update_body.from_user.last_name, username=update_body.from_user.username,
+                    meta=dict(first_name=update_body.from_user.first_name or '',
+                                  last_name=update_body.from_user.last_name or '', username=update_body.from_user.username,
                                   language_code=update_body.from_user.language_code,
                                   is_premium=update_body.from_user.is_premium),
                     created=datetime.now()