diff --git a/api/@ohos.userIAM.userAuth.d.ts b/api/@ohos.userIAM.userAuth.d.ts
index 85ad5b03e28c071d0c0ab3a24b6c35b7ee56feaa..faf424d0e50b01eb82e78bbcb8db415980b019b5 100644
--- a/api/@ohos.userIAM.userAuth.d.ts
+++ b/api/@ohos.userIAM.userAuth.d.ts
@@ -127,7 +127,7 @@ declare namespace userAuth {
      * User authentication.
      * @since 8
      */
-     class UserAuth {
+    class UserAuth {
         /**
          * Constructor to get the UserAuth class instance.
          * @since 8