[ci skip] Alter a docblock
diff --git a/system/libraries/Upload.php b/system/libraries/Upload.php
index ff1b664..66514cd 100644
--- a/system/libraries/Upload.php
+++ b/system/libraries/Upload.php
@@ -741,7 +741,7 @@
 	/**
 	 * Set Allowed File Types
 	 *
-	 * @param	string	$types
+	 * @param	mixed	$types
 	 * @return	CI_Upload
 	 */
 	public function set_allowed_types($types)