diff --git a/wx/Config.php b/wx/Config.php
index 8da54d5..05dd8cc 100644
--- a/wx/Config.php
+++ b/wx/Config.php
@@ -403,6 +403,9 @@ class Config
 	 */
 	public function setConfigs(array $configs)
 	{
+		if (empty($configs)) {
+			return $this;
+		}
 		foreach ($configs as $key => $val) {
 			if (empty($val) || is_array($val)) {
 				continue;