diff --git a/tile_compiler.py b/tile_compiler.py
index 42932f5..7e55d05 100755
--- a/tile_compiler.py
+++ b/tile_compiler.py
@@ -1,4 +1,4 @@
-#!python
+#!/usr/bin/env python3
 import sys
 
 with open(sys.argv[1], 'r') as f: