1 files changed, 4 insertions, 3 deletions

diff --git a/src/util/mq.c b/src/util/mq.c
index 985e86331..d12f69e5f 100644
--- a/src/util/mq.c
+++ b/src/util/mq.c
@@ -811,12 +811,13 @@ GNUNET_MQ_assoc_remove (struct GNUNET_MQ_Handle *mq,
  * @param cb_cls closure for the callback
  */
 void
-GNUNET_MQ_notify_sent (struct GNUNET_MQ_Envelope *mqm,
+GNUNET_MQ_notify_sent (struct GNUNET_MQ_Envelope *ev,
                        GNUNET_SCHEDULER_TaskCallback cb,
                        void *cb_cls)
 {
-  mqm->sent_cb = cb;
-  mqm->sent_cls = cb_cls;
+  GNUNET_assert (NULL == ev->sent_cb);
+  ev->sent_cb = cb;
+  ev->sent_cls = cb_cls;
 }