diff --git a/install.php b/install.php
index 32e5bb75..ae9cdf9a 100644
--- a/install.php
+++ b/install.php
@@ -1031,8 +1031,7 @@ function install_step_2_perform()
                 ->addRule('dbFile', 'required', _t('确认您的配置'))
                 ->addRule('dbFile', function (string $path) {
                     $pattern = "/^(\/[._a-z0-9-]+)*[a-z0-9]+\.[a-z0-9]{2,}$/i";
-                    if (strstr(PHP_OS, 'WIN'))
-                    {
+                    if (strstr(PHP_OS, 'WIN')) {
                         $pattern = "/(\/[._a-z0-9-]+)*[a-z0-9]+\.[a-z0-9]{2,}$/i";
                     }
                     return !!preg_match($pattern, $path);
diff --git a/var/Typecho/Widget/Helper/Form/Element/Checkbox.php b/var/Typecho/Widget/Helper/Form/Element/Checkbox.php
index 15353975..b931d692 100644
--- a/var/Typecho/Widget/Helper/Form/Element/Checkbox.php
+++ b/var/Typecho/Widget/Helper/Form/Element/Checkbox.php
@@ -61,7 +61,7 @@ class Checkbox extends Element
      */
     protected function inputValue($value)
     {
-        $values = is_array($value) ? $value : [$value];
+        $values = is_null($value) ? [] : (is_array($value) ? $value : [$value]);
 
         foreach ($this->options as $option) {
             $option->removeAttribute('checked');