diff --git a/delta_diff_generator.cc b/delta_diff_generator.cc
index ec07119..657bdf5 100644
--- a/delta_diff_generator.cc
+++ b/delta_diff_generator.cc
@@ -652,6 +652,10 @@
 
     // delete the old edge
     CHECK_EQ(1, (*graph)[it->first].out_edges.erase(it->second));
+    
+    // Add an edge from dst to copy operation
+    (*graph)[it->second].out_edges.insert(make_pair(graph->size() - 1,
+                                                    EdgeProperties()));
   }
   return true;
 }
diff --git a/delta_diff_generator_unittest.cc b/delta_diff_generator_unittest.cc
index 50f1180..b137766 100644
--- a/delta_diff_generator_unittest.cc
+++ b/delta_diff_generator_unittest.cc
@@ -284,11 +284,13 @@
   EXPECT_EQ(2, graph[0].op.dst_extents(0).num_blocks());
   EXPECT_EQ(4, graph[0].op.dst_extents(1).start_block());
   EXPECT_EQ(1, graph[0].op.dst_extents(1).num_blocks());
-  
-  // Ensure it only depends on the next node
-  EXPECT_EQ(1, graph[0].out_edges.size());
+
+  // Ensure it only depends on the next node and the new temp node
+  EXPECT_EQ(2, graph[0].out_edges.size());
   EXPECT_TRUE(graph[0].out_edges.end() != graph[0].out_edges.find(1));
-  
+  EXPECT_TRUE(graph[0].out_edges.end() != graph[0].out_edges.find(graph.size() -
+                                                                  1));
+
   // Check second node has unchanged extents
   EXPECT_EQ(2, graph[1].op.src_extents_size());
   EXPECT_EQ(1, graph[1].op.src_extents(0).start_block());