diff --git a/Updates/4423_q.5156_areatrigger.sql b/Updates/4423_q.5156_areatrigger.sql
index 7ba56ac87..8c72767c2 100644
--- a/Updates/4423_q.5156_areatrigger.sql
+++ b/Updates/4423_q.5156_areatrigger.sql
@@ -4,3 +4,7 @@ INSERT INTO `areatrigger_involvedrelation` (`id`, `quest`) VALUES
 (2206, 5156),
 (2207, 5156),
 (2208, 5156);
+
+-- Table `areatrigger_involvedrelation` has record (id: 2206) for not quest 5156, but quest not have flag QUEST_SPECIAL_FLAG_EXPLORATION_OR_EVENT. Trigger or quest flags must be fixed, quest modified to require objective.
+UPDATE `quest_template` SET `SpecialFlags` = 2 WHERE `entry` = 5156; -- Makes the quest only completable by some external event (an entry in areatrigger_involvedrelation,, spell effect quest complete or an entry in spell_scripts with command 7 as some examples)
+