diff --git a/Tools/scripts/suff.py b/Tools/scripts/suff.py
index 462ec32..8e22a7e 100755
--- a/Tools/scripts/suff.py
+++ b/Tools/scripts/suff.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#! /usr/bin/env python3
 
 # suff
 #