diff --git a/library/think/Hook.php b/library/think/Hook.php
index 9746f487..7f5de18c 100644
--- a/library/think/Hook.php
+++ b/library/think/Hook.php
@@ -122,11 +122,9 @@ class Hook
     public static function exec($class, $tag = '', &$params = null)
     {
         if ($class instanceof \Closure) {
-            $result = call_user_func_array($class, $params);
+            $result = call_user_func_array($class, [$params]);
         } elseif (is_object($class)) {
-            $result = call_user_func_array([$class, $tag], $params);
-        } elseif (is_array($class)) {
-            $result = call_user_func_array($class, $params);
+            $result = call_user_func_array([$class, $tag], [$params]);
         } else {
             $obj    = new $class();
             $result = ($tag && is_callable([$obj, $tag])) ? $obj->$tag($params) : $obj->run($params);