--- /usr/local/src/asterisk-13.18.2/apps/app_queue.c    2017-11-10 16:41:55.000000000 +0100
+++ app_queue.c 2017-11-26 11:44:59.281418114 +0100
@@ -2656,6 +2656,7 @@
        q->maxlen = 0;
 
        ast_string_field_set(q, context, "");
+       ast_string_field_set(q, announce, "");
 
        q->announcefrequency = 0;
        q->minannouncefrequency = DEFAULT_MIN_ANNOUNCE_FREQUENCY;