diff --git a/tools/decomplint/decomplint.py b/tools/decomplint/decomplint.py
index 2ceb42c2..6aa28012 100755
--- a/tools/decomplint/decomplint.py
+++ b/tools/decomplint/decomplint.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 import os
 import sys
 import argparse