diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index 1f4a9a6..f4caad5 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -51,7 +51,7 @@
 			ts_needtime:1,
 			ts_needaddr:1;
 	unsigned char	router_alert;
-	unsigned char	__pad1;
+	unsigned char	cipso;
 	unsigned char	__pad2;
 	unsigned char	__data[0];
 };