diff --git a/src/hnbgw.c b/src/hnbgw.c
index 0839e691..08755240 100644
--- a/src/hnbgw.c
+++ b/src/hnbgw.c
@@ -92,8 +92,7 @@ static int hnb_write_cb(struct osmo_fd *fd, struct msgb *msg)
 
 	rc = sctp_send(fd->fd, msgb_data(msg), msgb_length(msg),
 			&sinfo, 0);
-	msgb_free(msg);
-
+	/* we don't need to msgb_free(), write_queue does this for us */
 	return rc;
 }