diff --git a/src/main/java/com/ntlab/irisserver/entities/Turn.java b/src/main/java/com/ntlab/irisserver/entities/Turn.java
index b6bae7b..344ac28 100644
--- a/src/main/java/com/ntlab/irisserver/entities/Turn.java
+++ b/src/main/java/com/ntlab/irisserver/entities/Turn.java
@@ -19,7 +19,7 @@
 
     private List<Member> questions[] = new ArrayList[16]; //<cno, List<Menber>>
 
-    private List<Cell> openlist = new ArrayList<>();
+    private List<Integer> openlist = new ArrayList<>();
 
     //コンストラクタ
 
@@ -43,7 +43,7 @@
 
     public int getMax() {return max;}
 
-    public List<Cell> getOpenListAll() {return openlist;} //リストそのものを返す。
+    public List<Integer> getOpenListAll() {return openlist;} //リストそのものを返す。
 
     public List<Member>[] getQuestionsList() {return questions;}
 
@@ -70,9 +70,9 @@
 
     //openlist操作
 
-    public Cell getOpenListSolo(int num){return openlist.get(num);}
+    public Integer getOpenListSolo(int num){return openlist.get(num);}
 
-    public void addOpenList(Cell card){openlist.add(card);}
+    public void addOpenList(Integer cno){openlist.add(cno);}
 
     public void delieteOpenList(int num){openlist.remove(num);}
 
diff --git a/src/main/java/com/ntlab/irisserver/entities/TurnJson.java b/src/main/java/com/ntlab/irisserver/entities/TurnJson.java
index 03d23ab..3f0bc91 100644
--- a/src/main/java/com/ntlab/irisserver/entities/TurnJson.java
+++ b/src/main/java/com/ntlab/irisserver/entities/TurnJson.java
@@ -16,7 +16,7 @@
     @JsonProperty("max")
     private int max;
 
-    private List<Cell> openlist = new ArrayList<>();
+    private List<Integer> openlist = new ArrayList<>();
 
     //コンストラクタ
 
@@ -36,7 +36,7 @@
 
     public int getMax() {return max;}
 
-    public List<Cell> getOpenListAll() {return openlist;} //リストそのものを返す。
+    public List<Integer> getOpenListAll() {return openlist;} //リストそのものを返す。
 
     //---------------------------------------------------------
     //セッター
@@ -50,9 +50,9 @@
     //---------------------------------------------------------
     //openlist操作
 
-    public Cell getOpenListSolo(int num){return openlist.get(num);}
+    public Integer getOpenListSolo(int num){return openlist.get(num);}
 
-    public void addOpenList(Cell card){openlist.add(card);}
+    public void addOpenList(Integer cno){openlist.add(cno);}
 
     public void delieteOpenList(int num){openlist.remove(num);}
 
diff --git a/src/main/java/com/ntlab/irisserver/resources/TurnsRest.java b/src/main/java/com/ntlab/irisserver/resources/TurnsRest.java
index 1a5d546..f2ad491 100644
--- a/src/main/java/com/ntlab/irisserver/resources/TurnsRest.java
+++ b/src/main/java/com/ntlab/irisserver/resources/TurnsRest.java
@@ -154,7 +154,7 @@
     @GET
     @Path("/{rid}/game/turns/{tno}/openlist")
     @Produces(MediaType.APPLICATION_JSON)
-    public List<Cell> getOpenList(@PathParam("rid") String rid, @PathParam("tno") int tno){
+    public List<Integer> getOpenList(@PathParam("rid") String rid, @PathParam("tno") int tno){
 
         RoomManager rm = RoomManager.getInstance();
         Room room = rm.getRoom(rid);
@@ -174,7 +174,7 @@
         Turn t = game.getTurn(tno);
         Cell card = game.getCell(cno);
 
-        t.addOpenList(card);
+        t.addOpenList(cno);
         card.setIsOpen(true);
     }