diff --git a/flow/layers/physical_shape_layer.cc b/flow/layers/physical_shape_layer.cc
index 005945f8f53be0..93bd2664a916c2 100644
--- a/flow/layers/physical_shape_layer.cc
+++ b/flow/layers/physical_shape_layer.cc
@@ -142,6 +142,7 @@ void PhysicalShapeLayer::Paint(PaintContext& context) const {
   // Call drawPath without clip if possible for better performance.
   SkPaint paint;
   paint.setColor(color_);
+  paint.setAntiAlias(true);
   if (clip_behavior_ != Clip::antiAliasWithSaveLayer) {
     context.leaf_nodes_canvas->drawPath(path_, paint);
   }