diff --git a/qrCamera/Program.cs b/qrCamera/Program.cs
index fdcc641..bb185bf 100644
--- a/qrCamera/Program.cs
+++ b/qrCamera/Program.cs
@@ -168,7 +168,8 @@ namespace BarcodeReaderExample
                 }
                 else if (whenWasLastTimeQrDetected > 0)
                 {
-                    Cv2.FillPoly(frame, contours, Scalar.White);   // fill with white
+                    if (draw)
+                        Cv2.FillPoly(frame, contours, Scalar.White);   // fill with white
 
                     try
                     {