diff --git a/lib/zin/zentao/bind.class.php b/lib/zin/zentao/bind.class.php
index 830e125745..18f2cdc7c8 100644
--- a/lib/zin/zentao/bind.class.php
+++ b/lib/zin/zentao/bind.class.php
@@ -25,12 +25,12 @@ class bind
     /**
      * Bind event by magic __callStatic, the method name as the event name.
      *
-     * @param  string $name
-     * @param  array  $args
-     * @return directive
+     * @param  string        $name
+     * @param  array         $args
+     * @return directive|set
      * @access public
      */
-    public static function __callStatic(string $name, array $args): directive
+    public static function __callStatic(string $name, array $args): directive|set
     {
         list($callback, $others) = array_merge($args, array(array()));
         return bind($name, $callback, $others);
diff --git a/lib/zin/zentao/zentao.func.php b/lib/zin/zentao/zentao.func.php
index 313acf53a3..a45b001765 100644
--- a/lib/zin/zentao/zentao.func.php
+++ b/lib/zin/zentao/zentao.func.php
@@ -102,8 +102,9 @@ function isAjaxRequest(?string $type = null): bool
  * @param  string            $name
  * @param  bool|string|array $callback
  * @param  array             $options
+ * @return directive|set
  */
-function bind(string $name, bool|string|array $callback, array|string $options = null): directive
+function bind(string $name, bool|string|array $callback, array|string $options = null): directive|set
 {
     if(is_string($options) && is_string($callback))
     {