diff --git a/libs/ui/source/painter_impl.cpp b/libs/ui/source/painter_impl.cpp
index e3f5d78b..148035bd 100644
--- a/libs/ui/source/painter_impl.cpp
+++ b/libs/ui/source/painter_impl.cpp
@@ -284,10 +284,17 @@ void main()
 		std::uint32_t const depth = impl().depth++;
 		std::uint32_t const base = batch.vertices.size();
 
-		batch.vertices.push_back({rect.corner(0.f, 0.f), depth, color, tc(0.f, 0.f)});
-		batch.vertices.push_back({rect.corner(1.f, 0.f), depth, color, tc(1.f, 0.f)});
-		batch.vertices.push_back({rect.corner(0.f, 1.f), depth, color, tc(0.f, 1.f)});
-		batch.vertices.push_back({rect.corner(1.f, 1.f), depth, color, tc(1.f, 1.f)});
+		auto round = [](geom::point<float, 2> p)
+		{
+			p[0] = std::round(p[0]);
+			p[1] = std::round(p[1]);
+			return p;
+		};
+
+		batch.vertices.push_back({round(rect.corner(0.f, 0.f)), depth, color, tc(0.f, 0.f)});
+		batch.vertices.push_back({round(rect.corner(1.f, 0.f)), depth, color, tc(1.f, 0.f)});
+		batch.vertices.push_back({round(rect.corner(0.f, 1.f)), depth, color, tc(0.f, 1.f)});
+		batch.vertices.push_back({round(rect.corner(1.f, 1.f)), depth, color, tc(1.f, 1.f)});
 
 		batch.indices.insert(batch.indices.end(), {base + 0, base + 1, base + 2, base + 2, base + 1, base + 3});
 	}