diff --git a/tools/pylibopenflow/bin/pyopenflow-lavi-pythonize.py b/tools/pylibopenflow/bin/pyopenflow-lavi-pythonize.py
old mode 100755
new mode 100644
index bb8c180..914a424
--- a/tools/pylibopenflow/bin/pyopenflow-lavi-pythonize.py
+++ b/tools/pylibopenflow/bin/pyopenflow-lavi-pythonize.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2.5
+#!/usr/bin/env python
 """This script generate class files for messenger and lavi in NOX, 
 specifically it creates a Python class for each data structure.