diff -r 4ea781f30555 -r bc07b9910cdb etherlab/etherlab.py
--- a/etherlab/etherlab.py	Fri Sep 28 19:06:28 2018 +0300
+++ b/etherlab/etherlab.py	Fri Sep 28 19:12:26 2018 +0300
@@ -125,7 +125,7 @@
                                 ("Control Byte", sync_manager.getControlByte()),
                                 ("Enable", sync_manager.getEnable())]:
                 if value is None:
-                    value =""
+                    value = ""
                 sync_manager_infos[name] = value
             sync_managers.append(sync_manager_infos)
         return sync_managers