diff --git a/tests/bin/inspect_onnx.py b/tests/bin/inspect_onnx.py
index 1708b6b3aa3acfcf6704a5b22c712429be85ef6a..2018924a25f7be44de0e0ead974546be58167ba9 100644
--- a/tests/bin/inspect_onnx.py
+++ b/tests/bin/inspect_onnx.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 import onnx
 from google.protobuf.json_format import MessageToDict
 import os, sys