diff --git a/src/server/game/Entities/Creature/CreatureGroups.h b/src/server/game/Entities/Creature/CreatureGroups.h
index 20f24013fc2..b36144db42f 100644
--- a/src/server/game/Entities/Creature/CreatureGroups.h
+++ b/src/server/game/Entities/Creature/CreatureGroups.h
@@ -43,7 +43,7 @@ struct FormationInfo
     uint32 leaderGUID;
     float follow_dist;
     float follow_angle;
-    uint8 groupAI;
+    uint32 groupAI;
     uint32 point_1;
     uint32 point_2;
 };