diff --git a/src/pocketmine/block/Anvil.php b/src/pocketmine/block/Anvil.php
index 6dabf373c..9367017a1 100644
--- a/src/pocketmine/block/Anvil.php
+++ b/src/pocketmine/block/Anvil.php
@@ -27,6 +27,7 @@ use pocketmine\inventory\AnvilInventory;
 use pocketmine\item\Item;
 use pocketmine\item\ItemFactory;
 use pocketmine\item\Tool;
+use pocketmine\math\AxisAlignedBB;
 use pocketmine\math\Vector3;
 use pocketmine\Player;
 
@@ -67,6 +68,30 @@ class Anvil extends Fallable{
 		return Tool::TYPE_PICKAXE;
 	}
 
+	public function recalculateBoundingBox() : ?AxisAlignedBB{
+		$inset = 0.125;
+
+		if($this->meta & 0x01){ //east/west
+			return new AxisAlignedBB(
+				$this->x,
+				$this->y,
+				$this->z + $inset,
+				$this->x + 1,
+				$this->y + 1,
+				$this->z + 1 - $inset
+			);
+		}else{
+			return new AxisAlignedBB(
+				$this->x + $inset,
+				$this->y,
+				$this->z,
+				$this->x + 1 - $inset,
+				$this->y + 1,
+				$this->z + 1
+			);
+		}
+	}
+
 	public function onActivate(Item $item, Player $player = null) : bool{
 		if($player instanceof Player){
 			$player->addWindow(new AnvilInventory($this));