diff --git a/Gramps.py b/Gramps.py
index 5d1986693..30ed98abb 100644
--- a/Gramps.py
+++ b/Gramps.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python -O
+#! /usr/bin/env python
 #
 # Gramps - a GTK+/GNOME based genealogy program
 #
diff --git a/scripts/gramps b/scripts/gramps
index a4842e518..6edc60af0 100755
--- a/scripts/gramps
+++ b/scripts/gramps
@@ -1,3 +1,3 @@
-#!/usr/bin/env python
+#!/usr/bin/env python -O
 import gramps.grampsapp as app
 app.main()