diff --git a/libs/blockview/blockview.cpp b/libs/blockview/blockview.cpp
index c4a1d34..89feb6b 100644
--- a/libs/blockview/blockview.cpp
+++ b/libs/blockview/blockview.cpp
@@ -1300,6 +1300,8 @@ void BlockView::trace(QPointF scene_pos_from, QPointF scene_pos_to, BlockBusItem
 			foreach (BlockItemPin * p, pins) {
 				if (p->busType() == bus->busType())
 					wavetrace.fill(quantize(p->scenePos(), grid_step).toPoint() / grid_step + dp, BlockViewWavetrace::Empty);
+				if (!m_pin_mc && !p->connectedBuses().isEmpty())
+					wavetrace.fill(quantize(p->scenePos(), grid_step).toPoint() / grid_step + dp, BlockViewWavetrace::Blocked);
 			}
 		}
 	if (m_trace_with_buses) {