diff --git a/src/pocketmine/Server.php b/src/pocketmine/Server.php
index f90556ee1..10b471595 100644
--- a/src/pocketmine/Server.php
+++ b/src/pocketmine/Server.php
@@ -1633,6 +1633,7 @@ class Server{
 			Entity::init();
 			Tile::init();
 			BlockFactory::init();
+			BlockFactory::registerStaticRuntimeIdMappings();
 			Enchantment::init();
 			ItemFactory::init();
 			Item::initCreativeItems();
diff --git a/src/pocketmine/block/BlockFactory.php b/src/pocketmine/block/BlockFactory.php
index 237224b41..0cc88463e 100644
--- a/src/pocketmine/block/BlockFactory.php
+++ b/src/pocketmine/block/BlockFactory.php
@@ -323,12 +323,6 @@ class BlockFactory{
 		//TODO: STRUCTURE_BLOCK
 
 		//TODO: RESERVED6
-
-		/** @var mixed[] $runtimeIdMap */
-		$runtimeIdMap = json_decode(file_get_contents(\pocketmine\RESOURCE_PATH . "runtimeid_table.json"), true);
-		foreach($runtimeIdMap as $obj){
-			self::registerMapping($obj["runtimeID"], $obj["id"], $obj["data"]);
-		}
 	}
 
 	/**
@@ -419,6 +413,14 @@ class BlockFactory{
 		return $b !== null and !($b instanceof UnknownBlock);
 	}
 
+	public static function registerStaticRuntimeIdMappings() : void{
+		/** @var mixed[] $runtimeIdMap */
+		$runtimeIdMap = json_decode(file_get_contents(\pocketmine\RESOURCE_PATH . "runtimeid_table.json"), true);
+		foreach($runtimeIdMap as $obj){
+			self::registerMapping($obj["runtimeID"], $obj["id"], $obj["data"]);
+		}
+	}
+
 	/**
 	 * @internal
 	 *