diff --git a/base.php b/base.php
index 969447d5c1..86c585bc35 100644
--- a/base.php
+++ b/base.php
@@ -9,7 +9,7 @@
 // | Author: liu21st <liu21st@gmail.com>
 // +----------------------------------------------------------------------
 
-define('THINK_VERSION', '5.0.22');
+define('THINK_VERSION', '5.0.23');
 define('THINK_START_TIME', microtime(true));
 define('THINK_START_MEM', memory_get_usage());
 define('EXT', '.php');
diff --git a/library/think/App.php b/library/think/App.php
index 297f8ae5f3..f572b907c3 100644
--- a/library/think/App.php
+++ b/library/think/App.php
@@ -552,7 +552,7 @@ public static function module($result, $config, $convert = null)
         // 获取控制器名
         $controller = strip_tags($result[1] ?: $config['default_controller']);
 
-        if (!preg_match('/^[A-Za-z](\w)*$/', $controller)) {
+        if (!preg_match('/^[A-Za-z](\w|\.)*$/', $controller)) {
             throw new HttpException(404, 'controller not exists:' . $controller);
         }