diff --git a/poly2tri/sweep/sweep.cc b/poly2tri/sweep/sweep.cc
index 56cddac..6add81f 100644
--- a/poly2tri/sweep/sweep.cc
+++ b/poly2tri/sweep/sweep.cc
@@ -172,6 +172,8 @@ Node& Sweep::NewFrontTriangle(SweepContext& tcx, Point& point, Node& node)
   tcx.AddToMap(triangle);
 
   Node* new_node = new Node(point);
+  nodes_.push_back(new_node);
+  
   new_node->next = node.next;
   new_node->prev = &node;
   node.next->prev = new_node;
@@ -629,8 +631,6 @@ void Sweep::FillRightConcaveEdgeEvent(SweepContext& tcx, Edge* edge, Node& node)
     }
   }
   
-  delete &node.next;
-  
 }
 
 void Sweep::FillRightConvexEdgeEvent(SweepContext& tcx, Edge* edge, Node& node)
@@ -712,8 +712,6 @@ void Sweep::FillLeftConcaveEdgeEvent(SweepContext& tcx, Edge* edge, Node& node)
     }    
   } 
   
-  delete &node.prev;
-  
 }
 
 void Sweep::FlipEdgeEvent(SweepContext& tcx, Point& ep, Point& eq, Triangle* t, Point& p)
diff --git a/poly2tri/sweep/sweep.h b/poly2tri/sweep/sweep.h
index 02bf9ab..5cc9e06 100644
--- a/poly2tri/sweep/sweep.h
+++ b/poly2tri/sweep/sweep.h
@@ -39,6 +39,8 @@
 #ifndef SWEEP_H
 #define SWEEP_H
 
+#include <vector>
+
 namespace p2t {
 
 class SweepContext;
@@ -113,6 +115,9 @@ Point& NextFlipPoint(Point& ep, Point& eq, Triangle& ot, Point& op);
 void FlipScanEdgeEvent(SweepContext& tcx, Point& ep, Point& eq, Triangle& flip_triangle, Triangle& t, Point& p);
 
 void FinalizationPolygon(SweepContext& tcx);
+
+std::vector<Node*> nodes_;
+
 };
 
 }