diff --git a/pym/cl_vars_share.py b/pym/cl_vars_share.py
index afae055..45f3574 100644
--- a/pym/cl_vars_share.py
+++ b/pym/cl_vars_share.py
@@ -18,7 +18,7 @@ import os
 import sys
 from cl_utils import getpathenv, runOsCommand, typeFile
 import re
-from os import path
+from os import path, R_OK
 try:
     from cl_ldap import ldapUser
 except ImportError: