diff --git a/src/server/game/Entities/Creature/CreatureGroups.h b/src/server/game/Entities/Creature/CreatureGroups.h
index a18f2380cf2..6a8021f9003 100644
--- a/src/server/game/Entities/Creature/CreatureGroups.h
+++ b/src/server/game/Entities/Creature/CreatureGroups.h
@@ -42,7 +42,7 @@ struct FormationInfo
     ObjectGuid::LowType leaderGUID;
     float follow_dist;
     float follow_angle;
-    uint8 groupAI;
+    uint32 groupAI;
     uint32 point_1;
     uint32 point_2;
 };