diff --git a/support/scripts/as2gbmap.py b/support/scripts/as2gbmap.py
index 2ab5cde..193c878 100644
--- a/support/scripts/as2gbmap.py
+++ b/support/scripts/as2gbmap.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 # as2gbmap - asxxxx to gb map file converter
 #