diff --git a/src/main/java/org/ntlab/acanthus_server/resources/gallery/InvitesRest.java b/src/main/java/org/ntlab/acanthus_server/resources/gallery/InvitesRest.java
index 3f78f1f..a8b54e7 100644
--- a/src/main/java/org/ntlab/acanthus_server/resources/gallery/InvitesRest.java
+++ b/src/main/java/org/ntlab/acanthus_server/resources/gallery/InvitesRest.java
@@ -90,8 +90,8 @@
         }
 
         //既に招待されているかのチェック
-        for (var invite : invitedAccount.getInvitedMap().values()) {
-            if(invite.isInviting()){
+        for (Account account : animation.getInvites()) {
+            if (account.getUid() == Integer.parseInt(invitedUid)) {
                 var response = Response.status(401).entity("既にユーザーを招待しています.");
                 throw new WebApplicationException(response.build());
             }