diff --git a/toonz/sources/include/tw/canvas.h b/toonz/sources/include/tw/canvas.h
deleted file mode 100644
index 6598f3a..0000000
--- a/toonz/sources/include/tw/canvas.h
+++ /dev/null
@@ -1,28 +0,0 @@
-#pragma once
-
-#ifndef CANVAS_INCLUDED
-#define CANVAS_INCLUDED
-
-//#include "tcommon.h"
-#include "tw/tw.h"
-
-#undef DVAPI
-#undef DVVAR
-#ifdef TWIN_EXPORTS
-#define DVAPI DV_EXPORT_API
-#define DVVAR DV_EXPORT_VAR
-#else
-#define DVAPI DV_IMPORT_API
-#define DVVAR DV_IMPORT_VAR
-#endif
-
-class DVAPI TCanvas : public TWidget {
-protected:
-public:
-  TCanvas(TWidget *parent, string name = "canvas");
-  ~TCanvas();
-
-  virtual void draw();
-};
-
-#endif