/usr/local/bin/python -> /usr/bin/env python
diff --git a/Demo/sgi/gl/zrgb.py b/Demo/sgi/gl/zrgb.py
index 6561e11..2ad68c9 100755
--- a/Demo/sgi/gl/zrgb.py
+++ b/Demo/sgi/gl/zrgb.py
@@ -1,4 +1,4 @@
-#! /usr/local/bin/python
+#! /usr/bin/env python
 
 #   zrgb  (Requires Z buffer.)
 #