diff --git a/pages/API/get-location/get-location.uvue b/pages/API/get-location/get-location.uvue
index 79feb36e49a3e8cb09577a36538ce0c0eb85f559..71e03187d18b4a994eda71ba7aee84a03a20cab0 100644
--- a/pages/API/get-location/get-location.uvue
+++ b/pages/API/get-location/get-location.uvue
@@ -38,7 +38,7 @@
 </template>
 <script lang="uts">
   type ItemType = {
-    value : string,
+    value : 'wgs84' | 'gcj02',
     name : string,
   }
   export default {