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 f7ed29a..8b9bfe6 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
@@ -13,19 +13,19 @@
 
     /*
      * 何かを書き始めた時strokeNoを取得しペン情報、色情報、太さ情報、座標情報を追加する
-     * @PathParam Integer           aid      作品のID
-     * @FormParam Integer           uid      ページのID
-     * @FormParam Integer           uidToken トークン
-     * @Formparam Optional<Integer> pen      ペン情報
-     * @Formparam Optional<Integer> color    色情報
-     * @Formparam Optional<Integer> thick    太さ情報
+     * @PathParam Integer aid      作品のID
+     * @FormParam Integer uid      ページのID
+     * @FormParam Integer uidToken トークン
+     * @Formparam Integer pen      ペン情報
+     * @Formparam Integer color    色情報
+     * @Formparam Integer thick    太さ情報
      */
 
     @Path("/{aid}/pageMap/0/layers/0/strokes")
     @POST
     @Produces(MediaType.APPLICATION_JSON)
     public String addStrokes(@PathParam("aid") Integer aid, @FormParam("uid") Integer uid, @FormParam("uidToken") Integer uidToken,
-                             @FormParam("pen") Optional<Integer> pen, @FormParam("color") Optional<Integer> color, @FormParam("thick") Optional<Integer> thick) {
+                             @FormParam("pen") Integer pen, @FormParam("color") Integer color, @FormParam("thick") Integer thick) {
         return null;
     }