diff --git a/src/Collapse.php b/src/Collapse.php
index 6b80e9f..840c513 100644
--- a/src/Collapse.php
+++ b/src/Collapse.php
@@ -97,7 +97,7 @@ class Collapse extends Widget
      */
     public $autoCloseItems = true;
     /**
-     * @var string the HTML options for the item toggle tag. Key 'tag' might be used here for the tag name specification.
+     * @var array the HTML options for the item toggle tag. Key 'tag' might be used here for the tag name specification.
      * For example:
      *
      * ```php