diff --git a/src/main/java/org/ntlab/acanthus_server/resources/accounts/WorkRest.java b/src/main/java/org/ntlab/acanthus_server/resources/accounts/WorkRest.java
index 62505a4..e2531ab 100644
--- a/src/main/java/org/ntlab/acanthus_server/resources/accounts/WorkRest.java
+++ b/src/main/java/org/ntlab/acanthus_server/resources/accounts/WorkRest.java
@@ -71,11 +71,11 @@
     @Path("/{uid}/work")
     @PUT
     @Produces(MediaType.APPLICATION_JSON)
-    public void updateWork(@PathParam("uid") Integer invitedUid, @FormParam("token") String invitedToken, @FormParam("aid") Integer aid) {
-        var account = accounts.getAccountByUid(invitedUid);
+    public Boolean updateWork(@PathParam("uid") Integer uid, @FormParam("token") String token, @FormParam("aid") Integer aid) {
+        var account = accounts.getAccountByUid(uid);
         var animation = gallery.getAnimationInformation(aid);
 
-        if(account != null && animation != null && account.getToken().equals(invitedToken)){
+        if(account != null && animation != null && account.getToken().equals(token)){
             //指定ユーザーの制作作品への参加の許可
             var invitedWork = account.getInvitedMap().get(aid);
 
@@ -85,6 +85,7 @@
 
                 //作品のeditorsにユーザーを追加
                 animation.restWorkToEditors(account);
+                return true;
             }else{
                 //作品に招待されていない場合のレスポンス
                 var response = Response.status(400).entity("作品に招待されていません");