diff --git a/1-getting-started/lessons/1-introduction-to-iot/translations/README.zh.md b/1-getting-started/lessons/1-introduction-to-iot/translations/README.zh-cn.md similarity index 100% rename from 1-getting-started/lessons/1-introduction-to-iot/translations/README.zh.md rename to 1-getting-started/lessons/1-introduction-to-iot/translations/README.zh-cn.md diff --git a/1-getting-started/lessons/1-introduction-to-iot/translations/assignment.zh.md b/1-getting-started/lessons/1-introduction-to-iot/translations/assignment.zh-cn.md similarity index 100% rename from 1-getting-started/lessons/1-introduction-to-iot/translations/assignment.zh.md rename to 1-getting-started/lessons/1-introduction-to-iot/translations/assignment.zh-cn.md diff --git a/1-getting-started/lessons/1-introduction-to-iot/translations/virtual-device.zh.md b/1-getting-started/lessons/1-introduction-to-iot/translations/virtual-device.zh-cn.md similarity index 100% rename from 1-getting-started/lessons/1-introduction-to-iot/translations/virtual-device.zh.md rename to 1-getting-started/lessons/1-introduction-to-iot/translations/virtual-device.zh-cn.md diff --git a/1-getting-started/lessons/1-introduction-to-iot/translations/wio-terminal.zh.md b/1-getting-started/lessons/1-introduction-to-iot/translations/wio-terminal.zh-cn.md similarity index 100% rename from 1-getting-started/lessons/1-introduction-to-iot/translations/wio-terminal.zh.md rename to 1-getting-started/lessons/1-introduction-to-iot/translations/wio-terminal.zh-cn.md diff --git a/translations/README.zh.md b/translations/README.zh-cn.md similarity index 100% rename from translations/README.zh.md rename to translations/README.zh-cn.md