diff --git a/src/main/java/org/ntlab/acanthus_server/entities/Position.java b/src/main/java/org/ntlab/acanthus_server/entities/Position.java
index d1c638d..89b9b71 100644
--- a/src/main/java/org/ntlab/acanthus_server/entities/Position.java
+++ b/src/main/java/org/ntlab/acanthus_server/entities/Position.java
@@ -7,9 +7,13 @@
 import java.util.UUID;
 
 public class Position {
+    private int i;
     private float x;
     private float y;
 
+    public int getI() {
+        return i;
+    }
     public float getX() {
         return x;
     }
@@ -17,7 +21,8 @@
         return y;
     }
 
-    public void setXY(float x, float y) {
+    public void setXY(int i, float x, float y) {
+        this.i = i;
         this.x = x;
         this.y = y;
     }
diff --git a/src/main/java/org/ntlab/acanthus_server/resources/gallery/StrokesRest.java b/src/main/java/org/ntlab/acanthus_server/resources/gallery/StrokesRest.java
index 5f22986..a7999a8 100644
--- a/src/main/java/org/ntlab/acanthus_server/resources/gallery/StrokesRest.java
+++ b/src/main/java/org/ntlab/acanthus_server/resources/gallery/StrokesRest.java
@@ -153,13 +153,14 @@
     @Path("/{aid}/pageMap/{pid}/layers/{layerNo}/strokes/{strokeNo}/positions")
     @POST
     @Produces(MediaType.APPLICATION_JSON)
-    public Integer addPosition(@PathParam("aid") Integer aid, @PathParam("pid") Integer pid, @PathParam("strokeNo") Integer strokeNo,
+    public Integer addPosition(@FormParam("positionNo") Integer positionNo, @PathParam("aid") Integer aid, @PathParam("pid") Integer pid, @PathParam("strokeNo") Integer strokeNo,
                                 @PathParam("layerNo") Integer layerNo, @FormParam("x") Float x, @FormParam("y") Float y) {
         var pages = gallery.getAnimationByAid(aid).getPages();
         var strokes = pages.get(pid).getLayers().get(layerNo).getStrokes();
 
+
         Position position = new Position();
-        position.setXY(x, y);
+        position.setXY(positionNo, x, y);
         strokes.get(strokeNo).addPosition(position);          // 呼び出したstrokesに座標を追加する
 //        if(animation != null) {
 //            this.Position.setXY(x, y);