diff --git a/src/main/java/com/ntlab/irisserver/resources/MembersRest.java b/src/main/java/com/ntlab/irisserver/resources/MembersRest.java
index 95d7e3c..913baa4 100644
--- a/src/main/java/com/ntlab/irisserver/resources/MembersRest.java
+++ b/src/main/java/com/ntlab/irisserver/resources/MembersRest.java
@@ -14,8 +14,6 @@
 import javax.ws.rs.core.Response;
 
 @Component
-
-
 @Path("/rooms")
 public class MembersRest {
 
@@ -52,23 +50,23 @@
     //ランダムにチーム編成を送り、全員の役職を変更する
     @PUT
     @Path("/{rid}/members")
+    @Produces(MediaType.APPLICATION_JSON)
     public void putMembers(@PathParam("rid") String rid, @FormParam("nickname") String nickname) {
         RoomManager rm = RoomManager.getInstance();
         Room room = rm.getRoom(rid);
         List<Member> gm = room.getMembers();
 
         //引数で取ってきたnicknameがownerかどうか確認
-
-        if(nickname != room.getOwnerName()) {
+        String owner = room.getOwnerName();
+        if(nickname.equals(owner)) {
+            //全員の役職を変更
+            membershuffle(gm);
+        }else{
             var response = Response.status(401).entity("あなたはオーナーではありません");
             throw new WebApplicationException(response.build());
         }
 
 
-        //全員の役職を変更
-        membershuffle(gm);
-
-
     }
 
     //自分のnicknameを送り、Roomに追加