diff --git a/lector/resources/translations/Lector_zh.ts b/lector/resources/translations/Lector_zh.ts
index 3e34862..249c348 100644
--- a/lector/resources/translations/Lector_zh.ts
+++ b/lector/resources/translations/Lector_zh.ts
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!DOCTYPE TS><TS version="2.0">
+<!DOCTYPE TS><TS version="2.0" language="zh_CN" sourcelanguage="">
 <context>
     <name>BookToolBar</name>
     <message>