diff --git a/libs/vecr/source/renderer.cpp b/libs/vecr/source/renderer.cpp
index 0b549861..22ef4c39 100644
--- a/libs/vecr/source/renderer.cpp
+++ b/libs/vecr/source/renderer.cpp
@@ -65,9 +65,9 @@ namespace psemek::vecr
 		int ymin = std::max<int>(0, std::floor(box[1].min) * samples_);
 		int ymax = std::min<int>(canvas_.height() - 1, std::ceil(box[1].max) * samples_);
 
-		for (int y = ymin; y < ymax; ++y)
+		for (int y = ymin; y <= ymax; ++y)
 		{
-			for (int x = xmin; x < xmax; ++x)
+			for (int x = xmin; x <= xmax; ++x)
 			{
 				geom::point const center{(x + 0.5f) / samples_, (y + 0.5f) / samples_};