diff --git a/raycastlib.h b/raycastlib.h
index 8ad02e8..a838772 100644
--- a/raycastlib.h
+++ b/raycastlib.h
@@ -1220,7 +1220,7 @@ Unit coordStep = 1;
   // draw floor
 
   p.isWall = 0;
-  p.depth = (_middleRow - y) * _horizontalDepthStep;
+  p.depth = (_camera.resolution.y - y) * _horizontalDepthStep + 1;
 
   while (y < _camera.resolution.y)
   {