diff --git a/bot/server/main.py b/bot/server/main.py
index e715347..1fca5f4 100644
--- a/bot/server/main.py
+++ b/bot/server/main.py
@@ -1,6 +1,6 @@
 from quart import Blueprint, Response, request, render_template, redirect
 from .error import abort
-from bot import version, TelegramBot
+from bot import TelegramBot
 from bot.config import Telegram, Server
 from bot.modules.telegram import get_message, get_file_properties
 
@@ -18,16 +18,19 @@ async def transmit_file(file_id):
     if code != file.caption:
         abort(403)
     
-    file_name, mime_type = await get_file_properties(file)
+    file_name, file_size, mime_type = await get_file_properties(file)
+
     headers = {
         'Content-Type': mime_type,
-        'Content-Disposition': f'attachment; filename="{file_name}"'
+        'Content-Disposition': f'attachment; filename="{file_name}"',
+        'Content-Length': file_size
     }
 
     file_stream = TelegramBot.stream_media(file)
 
     return Response(file_stream, headers=headers)
 
+
 @bp.route('/stream/<int:file_id>')
 async def stream_file(file_id):
     code = request.args.get('code') or abort(401)
@@ -38,4 +41,4 @@ async def stream_file(file_id):
 async def file_deeplink(file_id):
     code = request.args.get('code') or abort(401)
 
-    return redirect(f'https://t.me/{Telegram.BOT_USERNAME}?start=file_{file_id}_{code}')
\ No newline at end of file
+    return redirect(f'https://t.me/{Telegram.BOT_USERNAME}?start=file_{file_id}_{code}')