diff --git a/aiogram/types/reply_keyboard.py b/aiogram/types/reply_keyboard.py
index e09ae4c4..8eda21f9 100644
--- a/aiogram/types/reply_keyboard.py
+++ b/aiogram/types/reply_keyboard.py
@@ -41,7 +41,7 @@ class ReplyKeyboardMarkup(base.TelegramObject):
         :rtype: :obj:`types.ReplyKeyboardMarkup`
         """
         row = []
-        for index, button in enumerate(args):
+        for index, button in enumerate(args, start=1):
             row.append(button)
             if index % self.row_width == 0:
                 self.keyboard.append(row)