diff --git a/src/pocketmine/plugin/PluginManager.php b/src/pocketmine/plugin/PluginManager.php
index 0ce695313..a709e253d 100644
--- a/src/pocketmine/plugin/PluginManager.php
+++ b/src/pocketmine/plugin/PluginManager.php
@@ -665,7 +665,7 @@ class PluginManager{
 					}elseif(is_string($data["permission"])){
 						$newCmd->setPermission($data["permission"]);
 					}else{
-						throw new \InvalidArgumentException("Permission must be a string or boolean, " . gettype($data["permission"] . " given"));
+						throw new \InvalidArgumentException("Permission must be a string or boolean, " . gettype($data["permission"]) . " given");
 					}
 				}