diff --git a/Canvas.cpp b/Canvas.cpp
index b01ae0b..225f200 100644
--- a/Canvas.cpp
+++ b/Canvas.cpp
@@ -232,6 +232,12 @@ void Canvas::mouseMoveEvent(QMouseEvent* event)
 {
 	if (draggedPoint) {
 		QPointF pos = event->pos() - dragOffset;
+		for (Point pair : points) {
+			if (areCoincident(draggedPoint, &pair)) {
+				*pair.x = pos.x();
+				*pair.y = pos.y();
+			}
+		}
 		*draggedPoint->x = pos.x();
 		*draggedPoint->y = pos.y();
 		update();