diff --git a/core_cmds.c b/core_cmds.c
index 5f01ebeb091..43b12aad879 100644
--- a/core_cmds.c
+++ b/core_cmds.c
@@ -1057,7 +1057,7 @@ static int w_set_adv_port(struct sip_msg *msg, str *adv_port)
 
 static int w_f_send_sock(struct sip_msg *msg, struct socket_info *si)
 {
-	msg->force_send_socket=si;
+	msg->force_send_socket=(const struct socket_info *)si;
 
 	return 1;
 }
diff --git a/modules/proto_sctp/sctp_server.c b/modules/proto_sctp/sctp_server.c
index aef28ab62a6..408d506bde4 100644
--- a/modules/proto_sctp/sctp_server.c
+++ b/modules/proto_sctp/sctp_server.c
@@ -194,10 +194,11 @@ int proto_sctp_send(const struct socket_info *source, char *buf, unsigned len,
 {
 	int n;
 	int tolen;
+	struct sockaddr s = to->s; /* XXX Linux defines sctp_sendmsg without const */
 
 	tolen=sockaddru_len(*to);
 again:
-	n=sctp_sendmsg(source->socket, buf, len, &to->s, tolen, 0, 0, 0, 0, 0);
+	n=sctp_sendmsg(source->socket, buf, len, &s, tolen, 0, 0, 0, 0, 0);
 #ifdef XL_DEBUG
 	LM_INFO("send status: %d\n", n);
 #endif