diff --git a/api/@ohos.geolocation.d.ts b/api/@ohos.geolocation.d.ts
index d8a755e11c027b7b3a0ae7f528d2da1609a0cc62..d45e9ba17df8bee39eb939bf7901a0bd7a226333 100644
--- a/api/@ohos.geolocation.d.ts
+++ b/api/@ohos.geolocation.d.ts
@@ -659,7 +659,7 @@ declare namespace geolocation {
          * Indicates whether it is an mock GeoAddress
          * @since 9
          */
-        isFromMock: Boolean;
+        isFromMock?: Boolean;
     }
 
     /**
@@ -767,7 +767,7 @@ declare namespace geolocation {
          * Indicates whether it is an mock location.
          * @since 9
          */
-        isFromMock: Boolean;
+        isFromMock?: Boolean;
     }
 
     /**