diff --git a/telebot/types.py b/telebot/types.py
index f1b9af0..3845532 100644
--- a/telebot/types.py
+++ b/telebot/types.py
@@ -951,7 +951,7 @@ class InlineKeyboardMarkup(Dictionaryable, JsonSerializable, JsonDeserializable)
         keyboard = [[InlineKeyboardButton.de_json(button) for button in row] for row in obj['inline_keyboard']]
         return cls(keyboard)
 
-    def __init__(self, keyboard=[] ,row_width=3):
+    def __init__(self, keyboard=None ,row_width=3):
         """
         This object represents an inline keyboard that appears
             right next to the message it belongs to.
@@ -964,13 +964,13 @@ class InlineKeyboardMarkup(Dictionaryable, JsonSerializable, JsonDeserializable)
             row_width = self.max_row_keys
         
         self.row_width = row_width
-        self.keyboard = keyboard
+        self.keyboard = keyboard if keyboard else []
 
     def add(self, *args, row_width=None):
         """
         This method adds buttons to the keyboard without exceeding row_width.
 
-        E.g. InlineKeyboardMarkup#add("A", "B", "C") yields the json result:
+        E.g. InlineKeyboardMarkup.add("A", "B", "C") yields the json result:
             {keyboard: [["A"], ["B"], ["C"]]}
         when row_width is set to 1.
         When row_width is set to 2, the result: