/* Try to send it by calling SIMIX network layer */
TRY {
t_simdata->comm = SIMIX_req_comm_isend(mailbox, t_simdata->message_size,
- t_simdata->rate, task, sizeof(void *), NULL, task);
+ t_simdata->rate, task, sizeof(void *), NULL, NULL);
#ifdef HAVE_TRACING
SIMIX_req_set_category(t_simdata->comm, task->category);
#endif