diff --git a/daemon.py b/daemon.py
index 56b35a26..c2c5a9c9 100644
--- a/daemon.py
+++ b/daemon.py
@@ -147,6 +147,7 @@ def readFollowList(filename: str):
 
 class PubServer(BaseHTTPRequestHandler):
     protocol_version = 'HTTP/1.1'
+    blockSize = 3 * 1024 * 1024
 
     def _requestHTTP(self) -> bool:
         """Should a http response be given?