diff --git a/qiskit/dagcircuit/dagcircuit.py b/qiskit/dagcircuit/dagcircuit.py
index 721497775..10319e600 100644
--- a/qiskit/dagcircuit/dagcircuit.py
+++ b/qiskit/dagcircuit/dagcircuit.py
@@ -1187,6 +1187,8 @@ class DAGCircuit:
         for nd in node_block:
             self._decrement_op(nd.op)
 
+        return new_node
+
     def substitute_node_with_dag(self, node, input_dag, wires=None, propagate_condition=True):
         """Replace one node with dag.