diff --git a/telebot/__init__.py b/telebot/__init__.py
index dbd0df5..1f4e8b1 100644
--- a/telebot/__init__.py
+++ b/telebot/__init__.py
@@ -544,16 +544,16 @@ class TeleBot:
         return types.Message.de_json(result)
 
     def edit_message_reply_markup(self, chat_id=None, message_id=None, inline_message_id=None, reply_markup=None):
-        return types.Message.de_json(
-            apihelper.edit_message_reply_markup(self.token, chat_id, message_id, inline_message_id, reply_markup)
-        )
+        result = apihelper.edit_message_reply_markup(self.token, chat_id, message_id, inline_message_id, reply_markup)
+        if type(result) == bool:
+            return result
+        return types.Message.de_json(result)
 
     def edit_message_caption(self, caption, chat_id=None, message_id=None, inline_message_id=None, reply_markup=None):
         result = apihelper.edit_message_caption(self.token, caption, chat_id, message_id, inline_message_id, reply_markup)
-        if isinstance(result, bool):
+        if type(result) == bool:
             return result
-        else:
-            return types.Message.de_json(result)
+        return types.Message.de_json(result)
 
     def reply_to(self, message, text, **kwargs):
         """