diff --git a/bgp.c b/bgp.c
index 2791ca3..181de9a 100644
--- a/bgp.c
+++ b/bgp.c
@@ -1028,7 +1028,7 @@ static int bgp_write(struct bgp_peer *peer)
     int len = htons(peer->outbuf->packet.header.len);
     int r;
 
-    while ((r = write(peer->sock, &peer->outbuf->packet + peer->outbuf->done,
+    while ((r = write(peer->sock, (char*)&peer->outbuf->packet + peer->outbuf->done,
 	len - peer->outbuf->done)) == -1)
     {
 	if (errno == EINTR)