diff --git a/ytdlbot/config.py b/ytdlbot/config.py
index 9f4860c..2bc0f4d 100644
--- a/ytdlbot/config.py
+++ b/ytdlbot/config.py
@@ -31,7 +31,7 @@ MULTIPLY = os.getenv("MULTIPLY", 5)  # VIP1 is 5*5-25G, VIP2 is 50G
 USD2CNY = os.getenv("USD2CNY", 6)  # $5 --> ¥30
 
 ENABLE_VIP = os.getenv("VIP", False)
-MAX_DURATION = int(os.getenv("MAX_DURATION", 300))
+MAX_DURATION = int(os.getenv("MAX_DURATION", 0))
 AFD_LINK = os.getenv("AFD_LINK", "https://afdian.net/@BennyThink")
 COFFEE_LINK = os.getenv("COFFEE_LINK", "https://www.buymeacoffee.com/bennythink")
 COFFEE_TOKEN = os.getenv("COFFEE_TOKEN")
diff --git a/ytdlbot/downloader.py b/ytdlbot/downloader.py
index 4ae9405..dff3a05 100644
--- a/ytdlbot/downloader.py
+++ b/ytdlbot/downloader.py
@@ -138,7 +138,7 @@ def convert_to_mp4(resp: dict, bot_msg):
                     logging.warning("Conversion abort for non VIP %s", bot_msg.chat.id)
                     bot_msg._client.send_message(
                         bot_msg.chat.id,
-                        "You're not VIP, so you can't convert longer video to streaming formats.")
+                        f"You're not VIP, so you can't convert video {MAX_DURATION}s to streaming formats.")
                     break
                 edit_text(bot_msg, f"{current_time()}: Converting {path.name} to mp4. Please wait.")
                 new_file_path = path.with_suffix(".mp4")