diff --git a/include/aiutp.hrl b/include/aiutp.hrl
index faf2fc0..27ada9d 100644
--- a/include/aiutp.hrl
+++ b/include/aiutp.hrl
@@ -14,7 +14,7 @@
 -define(REORDER_BUFFER_SIZE,32).
 -define(REORDER_BUFFER_MAX_SIZE,1024).
 -define(OUTGOING_BUFFER_MAX_SIZE,1024).
--define(BRUST_OUTGOING_BUFFER_SIZE,255).
+-define(BRUST_OUTGOING_BUFFER_SIZE,1023).
 -define(PACKET_SIZE,1453).
 -define(MIN_WINDOW_SIZE,2906).
 %-define(MIN_WINDOW_SIZE,7265).