diff --git a/src/pocketmine/permission/Permission.php b/src/pocketmine/permission/Permission.php
index 38a3cc132..9bbd374e5 100644
--- a/src/pocketmine/permission/Permission.php
+++ b/src/pocketmine/permission/Permission.php
@@ -27,10 +27,6 @@ declare(strict_types=1);
 
 namespace pocketmine\permission;
 
-use function is_array;
-use function is_bool;
-use function strtolower;
-
 /**
  * Represents a permission
  */
@@ -42,106 +38,6 @@ class Permission{
 
 	public static $DEFAULT_PERMISSION = self::DEFAULT_OP;
 
-	/**
-	 * @param bool|string $value
-	 *
-	 * @return string
-	 *
-	 * @throws \InvalidArgumentException
-	 */
-	public static function getByName($value) : string{
-		if(is_bool($value)){
-			if($value){
-				return "true";
-			}else{
-				return "false";
-			}
-		}
-		switch(strtolower($value)){
-			case "op":
-			case "isop":
-			case "operator":
-			case "isoperator":
-			case "admin":
-			case "isadmin":
-				return self::DEFAULT_OP;
-
-			case "!op":
-			case "notop":
-			case "!operator":
-			case "notoperator":
-			case "!admin":
-			case "notadmin":
-				return self::DEFAULT_NOT_OP;
-
-			case "true":
-				return self::DEFAULT_TRUE;
-			case "false":
-				return self::DEFAULT_FALSE;
-		}
-
-		throw new \InvalidArgumentException("Unknown permission default name \"$value\"");
-	}
-
-	/**
-	 * @param array  $data
-	 * @param string $default
-	 *
-	 * @return Permission[]
-	 */
-	public static function loadPermissions(array $data, string $default = self::DEFAULT_OP) : array{
-		$result = [];
-		foreach($data as $key => $entry){
-			$result[] = self::loadPermission($key, $entry, $default, $result);
-		}
-
-		return $result;
-	}
-
-	/**
-	 * @param string $name
-	 * @param array  $data
-	 * @param string $default
-	 * @param array  $output
-	 *
-	 * @return Permission
-	 *
-	 * @throws \Exception
-	 */
-	public static function loadPermission(string $name, array $data, string $default = self::DEFAULT_OP, array &$output = []) : Permission{
-		$desc = null;
-		$children = [];
-		if(isset($data["default"])){
-			$value = Permission::getByName($data["default"]);
-			if($value !== null){
-				$default = $value;
-			}else{
-				throw new \InvalidStateException("'default' key contained unknown value");
-			}
-		}
-
-		if(isset($data["children"])){
-			if(is_array($data["children"])){
-				foreach($data["children"] as $k => $v){
-					if(is_array($v)){
-						if(($perm = self::loadPermission($k, $v, $default, $output)) !== null){
-							$output[] = $perm;
-						}
-					}
-					$children[$k] = true;
-				}
-			}else{
-				throw new \InvalidStateException("'children' key is of wrong type");
-			}
-		}
-
-		if(isset($data["description"])){
-			$desc = $data["description"];
-		}
-
-		return new Permission($name, $desc, $default, $children);
-	}
-
 	/** @var string */
 	private $name;
 
diff --git a/src/pocketmine/permission/PermissionParser.php b/src/pocketmine/permission/PermissionParser.php
new file mode 100644
index 000000000..811554eb4
--- /dev/null
+++ b/src/pocketmine/permission/PermissionParser.php
@@ -0,0 +1,127 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+declare(strict_types=1);
+
+namespace pocketmine\permission;
+
+class PermissionParser{
+
+	/**
+	 * @param bool|string $value
+	 *
+	 * @return string
+	 *
+	 * @throws \InvalidArgumentException
+	 */
+	public static function defaultFromString($value) : string{
+		if(is_bool($value)){
+			if($value){
+				return "true";
+			}else{
+				return "false";
+			}
+		}
+		switch(strtolower($value)){
+			case "op":
+			case "isop":
+			case "operator":
+			case "isoperator":
+			case "admin":
+			case "isadmin":
+				return Permission::DEFAULT_OP;
+
+			case "!op":
+			case "notop":
+			case "!operator":
+			case "notoperator":
+			case "!admin":
+			case "notadmin":
+				return Permission::DEFAULT_NOT_OP;
+
+			case "true":
+				return Permission::DEFAULT_TRUE;
+			case "false":
+				return Permission::DEFAULT_FALSE;
+		}
+
+		throw new \InvalidArgumentException("Unknown permission default name \"$value\"");
+	}
+
+	/**
+	 * @param array  $data
+	 * @param string $default
+	 *
+	 * @return Permission[]
+	 */
+	public static function loadPermissions(array $data, string $default = Permission::DEFAULT_OP) : array{
+		$result = [];
+		foreach($data as $key => $entry){
+			$result[] = self::loadPermission($key, $entry, $default, $result);
+		}
+
+		return $result;
+	}
+
+	/**
+	 * @param string $name
+	 * @param array  $data
+	 * @param string $default
+	 * @param array  $output
+	 *
+	 * @return Permission
+	 *
+	 * @throws \Exception
+	 */
+	public static function loadPermission(string $name, array $data, string $default = Permission::DEFAULT_OP, array &$output = []) : Permission{
+		$desc = null;
+		$children = [];
+		if(isset($data["default"])){
+			$value = PermissionParser::defaultFromString($data["default"]);
+			if($value !== null){
+				$default = $value;
+			}else{
+				throw new \InvalidStateException("'default' key contained unknown value");
+			}
+		}
+
+		if(isset($data["children"])){
+			if(is_array($data["children"])){
+				foreach($data["children"] as $k => $v){
+					if(is_array($v)){
+						if(($perm = self::loadPermission($k, $v, $default, $output)) !== null){
+							$output[] = $perm;
+						}
+					}
+					$children[$k] = true;
+				}
+			}else{
+				throw new \InvalidStateException("'children' key is of wrong type");
+			}
+		}
+
+		if(isset($data["description"])){
+			$desc = $data["description"];
+		}
+
+		return new Permission($name, $desc, $default, $children);
+	}
+}
diff --git a/src/pocketmine/plugin/PluginDescription.php b/src/pocketmine/plugin/PluginDescription.php
index 7cdd1e95a..b904bf491 100644
--- a/src/pocketmine/plugin/PluginDescription.php
+++ b/src/pocketmine/plugin/PluginDescription.php
@@ -24,6 +24,7 @@ declare(strict_types=1);
 namespace pocketmine\plugin;
 
 use pocketmine\permission\Permission;
+use pocketmine\permission\PermissionParser;
 use function array_map;
 use function array_values;
 use function constant;
@@ -146,7 +147,7 @@ class PluginDescription{
 		}
 
 		if(isset($plugin["permissions"])){
-			$this->permissions = Permission::loadPermissions($plugin["permissions"]);
+			$this->permissions = PermissionParser::loadPermissions($plugin["permissions"]);
 		}
 	}