diff --git a/src/game/Maps/Map.h b/src/game/Maps/Map.h
index 26e55a1eb86..1d3b5955fc2 100644
--- a/src/game/Maps/Map.h
+++ b/src/game/Maps/Map.h
@@ -566,7 +566,7 @@ class WorldMap : public Map
     private:
         using Map::GetPersistentState;                      // hide in subclass for overwrite
     public:
-        WorldMap(uint32 id, time_t expiry) : Map(id, expiry, 0, REGULAR_DIFFICULTY) {}
+        WorldMap(uint32 id, time_t expiry, uint32 InstanceId) : Map(id, expiry, InstanceId, REGULAR_DIFFICULTY) {}
         ~WorldMap() {}
 
         // can't be nullptr for loaded map
diff --git a/src/game/Maps/MapManager.cpp b/src/game/Maps/MapManager.cpp
index 7cedf66a1b5..f08d682c221 100644
--- a/src/game/Maps/MapManager.cpp
+++ b/src/game/Maps/MapManager.cpp
@@ -94,7 +94,7 @@ void MapManager::CreateContinents()
     uint32 continents[] = { 0, 1, 530, 571};
     for (auto id : continents)
     {
-        Map* m = new WorldMap(id, i_gridCleanUpDelay);
+        Map* m = new WorldMap(id, i_gridCleanUpDelay, 0);
         // add map into container
         i_maps[MapID(id)] = m;
 
@@ -133,9 +133,9 @@ Map* MapManager::CreateMap(uint32 id, const WorldObject* obj)
         if (m == nullptr)
         {
             std::lock_guard<std::mutex> lock(m_lock);
-            m = new WorldMap(id, i_gridCleanUpDelay);
+            m = new WorldMap(id, i_gridCleanUpDelay, instanceId);
             // add map into container
-            i_maps[MapID(id)] = m;
+            i_maps[MapID(id, instanceId)] = m;
 
             // non-instanceable maps always expected have saved state
             m->Initialize();