diff --git a/base/applications/mspaint/canvas.h b/base/applications/mspaint/canvas.h
index e884fa4df2a..4a41652adc0 100644
--- a/base/applications/mspaint/canvas.h
+++ b/base/applications/mspaint/canvas.h
@@ -11,7 +11,8 @@
 class CCanvasWindow : public CWindowImpl<CCanvasWindow>
 {
 public:
-    DECLARE_WND_CLASS_EX(_T("ReactOSPaintCanvas"), CS_DBLCLKS, COLOR_APPWORKSPACE)
+    DECLARE_WND_CLASS_EX(_T("ReactOSPaintCanvas"), CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW,
+                         COLOR_APPWORKSPACE)
 
     BEGIN_MSG_MAP(CCanvasWindow)
         MESSAGE_HANDLER(WM_SIZE, OnSize)