diff --git a/tools/pylibopenflow/bin/cstruct2py-query-cheader.py b/tools/pylibopenflow/bin/cstruct2py-query-cheader.py
old mode 100755
new mode 100644
index 3d23ef0..ed82316
--- a/tools/pylibopenflow/bin/cstruct2py-query-cheader.py
+++ b/tools/pylibopenflow/bin/cstruct2py-query-cheader.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2.5
+#!/usr/bin/env python
 """This script reads C/C++ header file and output query
 
 Author ykk