diff --git a/app/src/main/java/org/ntlab/irisclient/viewmodels/DrawingStateViewModel.java b/app/src/main/java/org/ntlab/irisclient/viewmodels/DrawingStateViewModel.java
index 32b42c5..4a4b954 100644
--- a/app/src/main/java/org/ntlab/irisclient/viewmodels/DrawingStateViewModel.java
+++ b/app/src/main/java/org/ntlab/irisclient/viewmodels/DrawingStateViewModel.java
@@ -120,7 +120,7 @@
         updateState(rid);
         updateDno(rid, nickName);
     }
-    public String putDrawing(Bitmap image){
+    public String putDrawing(/*Bitmap image*/){
 //        ByteArrayOutputStream stream = new ByteArrayOutputStream();
 //        image.compress(Bitmap.CompressFormat.PNG, 100, stream);
 //        byte[] byteArray = stream.toByteArray();