diff --git a/pyrogram/client/types/input_media/input_text_message_content.py b/pyrogram/client/types/input_media/input_text_message_content.py
index 1dffff43..3c74d34d 100644
--- a/pyrogram/client/types/input_media/input_text_message_content.py
+++ b/pyrogram/client/types/input_media/input_text_message_content.py
@@ -31,6 +31,6 @@ class InputTextMessageContent:
     def write(self, reply_markup):
         return types.InputBotInlineMessageText(
             no_webpage=self.disable_web_page_preview or None,
-            reply_markup=reply_markup.write(),
+            reply_markup=reply_markup.write() if reply_markup else None,
             **self.style.parse(self.message_text)
         )