diff --git a/tools/onnx-graphsurgeon/examples/04_modifying_a_model/modify.py b/tools/onnx-graphsurgeon/examples/04_modifying_a_model/modify.py
index 55d42234..e2f479fd 100644
--- a/tools/onnx-graphsurgeon/examples/04_modifying_a_model/modify.py
+++ b/tools/onnx-graphsurgeon/examples/04_modifying_a_model/modify.py
@@ -43,6 +43,6 @@
 # Therefore, you should only need to sort the graph when you have added new nodes out-of-order.
 # In this case, the identity node is already in the correct spot (it is the last node,
 # and was appended to the end of the list), but to be on the safer side, we can sort anyway.
-graph.cleanup().toposort()
+graph.cleanup(remove_unused_graph_inputs=True).toposort()
 
 onnx.save(gs.export_onnx(graph), "modified.onnx")