diff --git a/cfg_checker/nodes.py b/cfg_checker/nodes.py
index 0ca1e85..ec20f6a 100644
--- a/cfg_checker/nodes.py
+++ b/cfg_checker/nodes.py
@@ -162,7 +162,7 @@
             _nodes = self.nodes
         _result = self.execute_cmd_on_active_nodes(cmd, nodes=nodes)
         for node, data in _nodes.iteritems():
-            
+
             if node in self.skip_list:
                 logger_cli.debug(
                     "... '{}' skipped while collecting '{}'".format(