diff --git a/src/pocketmine/level/format/io/leveldb/LevelDB.php b/src/pocketmine/level/format/io/leveldb/LevelDB.php
index f3df3aed6..3c58396dd 100644
--- a/src/pocketmine/level/format/io/leveldb/LevelDB.php
+++ b/src/pocketmine/level/format/io/leveldb/LevelDB.php
@@ -84,6 +84,10 @@ class LevelDB extends BaseLevelProvider{
 		if(!extension_loaded('leveldb')){
 			throw new LevelException("The leveldb PHP extension is required to use this world format");
 		}
+
+		if(!defined('LEVELDB_ZLIB_RAW_COMPRESSION')){
+			throw new LevelException("Given version of php-leveldb doesn't support zlib raw compression");
+		}
 	}
 
 	public function __construct(Level $level, string $path){
@@ -103,10 +107,6 @@ class LevelDB extends BaseLevelProvider{
 			throw new LevelException("Invalid level.dat");
 		}
 
-		if(!defined('LEVELDB_ZLIB_RAW_COMPRESSION')){
-			throw new LevelException("Given version of php-leveldb doesn't support zlib raw compression");
-		}
-
 		$this->db = new \LevelDB($this->path . "/db", [
 			"compression" => LEVELDB_ZLIB_RAW_COMPRESSION
 		]);