diff --git a/Documentation/translations/zh_CN/index.rst b/Documentation/translations/zh_CN/index.rst
index 3a2929acad15..6eb286cadb72 100644
--- a/Documentation/translations/zh_CN/index.rst
+++ b/Documentation/translations/zh_CN/index.rst
@@ -24,6 +24,7 @@
    sound/index
    cpu-freq/index
    mips/index
+   iio/index
 
 目录和表格
 ----------