diff --git a/api/@ohos.deviceinfo.d.ts b/api/@ohos.deviceInfo.d.ts
similarity index 98%
rename from api/@ohos.deviceinfo.d.ts
rename to api/@ohos.deviceInfo.d.ts
index 7a78a571ba8ac425a7064b56bca5782fc84b0fae..c6b4c48ea362ce3918e443067f8b7790a5172808 100644
--- a/api/@ohos.deviceinfo.d.ts
+++ b/api/@ohos.deviceInfo.d.ts
@@ -233,6 +233,13 @@ declare namespace deviceInfo {
      * @since 6
      */
     const buildRootHash: string;
+    /**
+     * Obtains the device udid.
+     *
+     * @since 7
+     */
+    const udid: string;
+
 }
 
 export default deviceInfo;