diff --git a/src/pocketmine/tile/Container.php b/src/pocketmine/tile/Container.php
index 34e358237..a349824f5 100644
--- a/src/pocketmine/tile/Container.php
+++ b/src/pocketmine/tile/Container.php
@@ -51,4 +51,9 @@ interface Container{
 	 * @return Inventory
 	 */
 	public function getInventory();
+
+	/**
+	 * @return Inventory
+	 */
+	public function getRealInventory();
 }
diff --git a/src/pocketmine/tile/ContainerTrait.php b/src/pocketmine/tile/ContainerTrait.php
index 1b472c864..5ad11c9d3 100644
--- a/src/pocketmine/tile/ContainerTrait.php
+++ b/src/pocketmine/tile/ContainerTrait.php
@@ -45,7 +45,7 @@ trait ContainerTrait{
 	/**
 	 * @return Inventory
 	 */
-	abstract public function getInventory();
+	abstract public function getRealInventory();
 
 	/**
 	 * @param $index
@@ -118,7 +118,7 @@ trait ContainerTrait{
 			$this->getNBT()->setTag(new ListTag(Container::TAG_ITEMS, [], NBT::TAG_Compound));
 		}
 
-		$inventory = $this->getInventory();
+		$inventory = $this->getRealInventory();
 		for($i = 0, $size = $this->getSize(); $i < $size; ++$i){
 			$inventory->setItem($i, $this->getItem($i));
 		}
@@ -127,7 +127,7 @@ trait ContainerTrait{
 	protected function saveItems() : void{
 		$this->getNBT()->setTag(new ListTag(Container::TAG_ITEMS, [], NBT::TAG_Compound));
 
-		$inventory = $this->getInventory();
+		$inventory = $this->getRealInventory();
 		for($i = 0, $size = $this->getSize(); $i < $size; ++$i){
 			$this->setItem($i, $inventory->getItem($i));
 		}
diff --git a/src/pocketmine/tile/Furnace.php b/src/pocketmine/tile/Furnace.php
index 9b91a93a0..91289501c 100644
--- a/src/pocketmine/tile/Furnace.php
+++ b/src/pocketmine/tile/Furnace.php
@@ -118,6 +118,13 @@ class Furnace extends Spawnable implements InventoryHolder, Container, Nameable{
 		return $this->inventory;
 	}
 
+	/**
+	 * @return FurnaceInventory
+	 */
+	public function getRealInventory(){
+		return $this->getInventory();
+	}
+
 	protected function checkFuel(Item $fuel){
 		$this->server->getPluginManager()->callEvent($ev = new FurnaceBurnEvent($this, $fuel, $fuel->getFuelTime()));