diff --git a/app/src/main/java/org/ntlab/acanthus_client/resources/gallery/StrokesRest.java b/app/src/main/java/org/ntlab/acanthus_client/resources/gallery/StrokesRest.java
index 11f7b1a..f6384c8 100644
--- a/app/src/main/java/org/ntlab/acanthus_client/resources/gallery/StrokesRest.java
+++ b/app/src/main/java/org/ntlab/acanthus_client/resources/gallery/StrokesRest.java
@@ -32,7 +32,7 @@
     @FormUrlEncoded
     @POST("gallery/{aid}/pageMap/{pid}/layers/{layerNo}/strokes")
     Call<Integer> addStroke(@Path("aid") Integer aid, @Path("pid") Integer pid, @Path("layerNo") Integer layerNo,
-                            @Field("uid") Integer uid, @Field("uidToken") String uidToken,
+                            @Field("uid") Integer uid, @Field("strokeNo") Integer strokeNo,@Field("uidToken") String uidToken,
                             @Field("pen") Integer pen, @Field("color") Integer color, @Field("thick") Integer thick);
 
     //-----------------------------------------------------------------