Index: main/indications.c
===================================================================
--- main/indications.c	(revision 396164)
+++ main/indications.c	(working copy)
@@ -499,6 +499,9 @@
 
 	ast_tone_zone_unlock(zone);
 
+	if (!_zone)
+		zone = ast_tone_zone_unref(zone);
+
 	return ts;
 }