diff --git a/bricks/i18n.js b/bricks/i18n.js
index d68bc85..60fee21 100644
--- a/bricks/i18n.js
+++ b/bricks/i18n.js
@@ -78,6 +78,7 @@ bricks.I18n = class {
 	
 	}
 	async change_lang(lang){
+		this.lang = lang;
 		if (this.lang_msgs[lang]){
 			return;
 		}