diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 0e058a2..2d36f6d 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -342,6 +342,8 @@
 
 	unsigned long last_synq_overflow; 
 
+	__u32	tso_deferred;
+
 /* Receiver side RTT estimation */
 	struct {
 		__u32	rtt;