diff --git a/src/server/game/Globals/ObjectMgr.cpp b/src/server/game/Globals/ObjectMgr.cpp
index 985c8bc7c89..84f91e35720 100644
--- a/src/server/game/Globals/ObjectMgr.cpp
+++ b/src/server/game/Globals/ObjectMgr.cpp
@@ -2647,9 +2647,10 @@ void ObjectMgr::LoadItemTemplates()
         if (std::vector<ItemSpecOverrideEntry const*> const* itemSpecOverrides = sDB2Manager.GetItemSpecOverrides(sparse->ID))
         {
             for (ItemSpecOverrideEntry const* itemSpecOverride : *itemSpecOverrides)
-                itemTemplate.Specializations[0].insert(itemSpecOverride->SpecID);
+                if (ChrSpecializationEntry const* specialization = sChrSpecializationStore.LookupEntry(itemSpecOverride->SpecID))
+                    itemTemplate.Specializations[0].set(ItemTemplate::CalculateItemSpecBit(specialization));
 
-            itemTemplate.Specializations[1] = itemTemplate.Specializations[0];
+            itemTemplate.Specializations[1] |= itemTemplate.Specializations[0];
         }
         else
         {