diff --git a/Canvas.cpp b/Canvas.cpp
index cbfd5a0..fe7af21 100644
--- a/Canvas.cpp
+++ b/Canvas.cpp
@@ -34,9 +34,9 @@ Point* Canvas::findPointAt(QPointF pos, qreal tolerance)
 		QPointF p2(*line->p2.x, *line->p2.y);
 
 		if (dist_P2P(p1, pos) <= tolerance)
-			temp = &line->p1;
+			temp = line->p1_ref;
 		else if (dist_P2P(p2, pos) <= tolerance)
-			temp = &line->p2;
+			temp = line->p2_ref;
 	}
 	return temp;
 }
@@ -214,8 +214,8 @@ void Canvas::mousePressEvent(QMouseEvent* event)
 
 		Line *l1 = nullptr, *l2 = nullptr;
 		for (Line* l : lines) {
-			if (&l->p1 == firstPoint || &l->p2 == firstPoint) l1 = l;
-			if (&l->p1 == clickedPoint || &l->p2 == clickedPoint) l2 = l;
+			if (l->p1_ref == firstPoint || l->p2_ref == firstPoint) l1 = l;
+			if (l->p1_ref == clickedPoint || l->p2_ref == clickedPoint) l2 = l;
 		}
 
 		if (l1 == l2 ||