diff --git a/src/pocketmine/Server.php b/src/pocketmine/Server.php
index 898656ef4..908f978d6 100644
--- a/src/pocketmine/Server.php
+++ b/src/pocketmine/Server.php
@@ -1000,16 +1000,16 @@ class Server{
 
 		$path = $this->getDataPath() . "worlds/" . $name . "/";
 
-		$provider = LevelProviderManager::getProvider($path);
+		$providerClass = LevelProviderManager::getProvider($path);
 
-		if($provider === null){
+		if($providerClass === null){
 			$this->logger->error($this->getLanguage()->translateString("pocketmine.level.loadError", [$name, "Cannot identify format of world"]));
 
 			return false;
 		}
 
 		try{
-			$level = new Level($this, $name, $path, $provider);
+			$level = new Level($this, $name, new $providerClass($path));
 		}catch(\Throwable $e){
 
 			$this->logger->error($this->getLanguage()->translateString("pocketmine.level.loadError", [$name, $e->getMessage()]));
@@ -1053,16 +1053,16 @@ class Server{
 			$generator = Generator::getGenerator($this->getLevelType());
 		}
 
-		if(($provider = LevelProviderManager::getProviderByName($this->getProperty("level-settings.default-format", "pmanvil"))) === null){
-			$provider = LevelProviderManager::getProviderByName("pmanvil");
+		if(($providerClass = LevelProviderManager::getProviderByName($this->getProperty("level-settings.default-format", "pmanvil"))) === null){
+			$providerClass = LevelProviderManager::getProviderByName("pmanvil");
 		}
 
 		try{
 			$path = $this->getDataPath() . "worlds/" . $name . "/";
-			/** @var LevelProvider $provider */
-			$provider::generate($path, $name, $seed, $generator, $options);
+			/** @var LevelProvider $providerClass */
+			$providerClass::generate($path, $name, $seed, $generator, $options);
 
-			$level = new Level($this, $name, $path, (string) $provider);
+			$level = new Level($this, $name, new $providerClass($path));
 			$this->levels[$level->getId()] = $level;
 
 			$level->initLevel();
diff --git a/src/pocketmine/level/Level.php b/src/pocketmine/level/Level.php
index 77186ce90..80cba0f6b 100644
--- a/src/pocketmine/level/Level.php
+++ b/src/pocketmine/level/Level.php
@@ -317,27 +317,18 @@ class Level implements ChunkManager, Metadatable{
 	/**
 	 * Init the default level data
 	 *
-	 * @param Server $server
-	 * @param string $name
-	 * @param string $path
-	 * @param string $provider Class that extends LevelProvider
-	 *
-	 * @throws \Exception
+	 * @param Server        $server
+	 * @param string        $name
+	 * @param LevelProvider $provider
 	 */
-	public function __construct(Server $server, string $name, string $path, string $provider){
+	public function __construct(Server $server, string $name, LevelProvider $provider){
 		$this->blockStates = BlockFactory::getBlockStatesArray();
 		$this->levelId = static::$levelIdCounter++;
 		$this->blockMetadata = new BlockMetadataStore($this);
 		$this->server = $server;
 		$this->autoSave = $server->getAutoSave();
 
-		/** @var LevelProvider $provider */
-
-		if(is_subclass_of($provider, LevelProvider::class, true)){
-			$this->provider = new $provider($path);
-		}else{
-			throw new LevelException("Provider is not a subclass of LevelProvider");
-		}
+		$this->provider = $provider;
 
 		$this->displayName = $this->provider->getName();
 		$this->worldHeight = $this->provider->getWorldHeight();