diff --git a/var/Typecho/Widget/Helper/Form/Element.php b/var/Typecho/Widget/Helper/Form/Element.php
index 7389ebdd..984864c5 100644
--- a/var/Typecho/Widget/Helper/Form/Element.php
+++ b/var/Typecho/Widget/Helper/Form/Element.php
@@ -217,7 +217,7 @@ abstract class Element extends Layout
     public function value($value): Element
     {
         $this->value = $value;
-        $this->inputValue($value);
+        $this->inputValue($value ?? '');
         return $this;
     }