diff --git a/src/data/bedrock/item/ItemSerializerDeserializerRegistrar.php b/src/data/bedrock/item/ItemSerializerDeserializerRegistrar.php
index 7a720559ea..34e0c142b7 100644
--- a/src/data/bedrock/item/ItemSerializerDeserializerRegistrar.php
+++ b/src/data/bedrock/item/ItemSerializerDeserializerRegistrar.php
@@ -281,6 +281,7 @@ private function register1to1ItemMappings() : void{
 		$this->map1to1Item(Ids::LEATHER_CHESTPLATE, Items::LEATHER_TUNIC());
 		$this->map1to1Item(Ids::LEATHER_HELMET, Items::LEATHER_CAP());
 		$this->map1to1Item(Ids::LEATHER_LEGGINGS, Items::LEATHER_PANTS());
+		$this->map1to1Item(Ids::MACE, Items::MACE());
 		$this->map1to1Item(Ids::MAGMA_CREAM, Items::MAGMA_CREAM());
 		$this->map1to1Item(Ids::MANGROVE_BOAT, Items::MANGROVE_BOAT());
 		$this->map1to1Item(Ids::MANGROVE_SIGN, Items::MANGROVE_SIGN());