diff --git a/scripts/march-to-cpu-opt b/scripts/march-to-cpu-opt
index cec7d41c..d6a1a0d1 100755
--- a/scripts/march-to-cpu-opt
+++ b/scripts/march-to-cpu-opt
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 
 import argparse
 import sys