diff --git a/Unity-20038-05-BallPool-8M/Assets/_Script/TuioRoiFilter.cs b/Unity-20038-05-BallPool-8M/Assets/_Script/TuioRoiFilter.cs
index f780eda..cc93c55 100644
--- a/Unity-20038-05-BallPool-8M/Assets/_Script/TuioRoiFilter.cs
+++ b/Unity-20038-05-BallPool-8M/Assets/_Script/TuioRoiFilter.cs
@@ -25,7 +25,7 @@ public class TuioRoiFilter : TuioFilter
     public override void Filter(TuioContainer tcur)
     {
         if (isActiveAndEnabled == false) return;
-        if (roi != Rect.zero) return;
+        if (roi == Rect.zero) return;
         tcur.update(tcur.X * roi.width + roi.x, (1.0f - tcur.Y) * roi.height + roi.y);
     }
 }