--- app_queue.c~        2016-09-09 18:14:37.000000000 +0200
+++ app_queue.c 2016-10-13 09:01:31.000000000 +0200
@@ -2646,6 +2646,9 @@
        q->retry = DEFAULT_RETRY;
        q->timeout = DEFAULT_TIMEOUT;
        q->maxlen = 0;
+
+       ast_string_field_set(q, context, "");
+
        q->announcefrequency = 0;
        q->minannouncefrequency = DEFAULT_MIN_ANNOUNCE_FREQUENCY;
        q->announceholdtime = 1;