diff --git a/ucs-4.0-2/management/univention-management-console/src/univention/management/console/protocol/session.py b/ucs-4.0-2/management/univention-management-console/src/univention/management/console/protocol/session.py
index e81589b..6c4fe75 100644
--- a/ucs-4.0-2/management/univention-management-console/src/univention/management/console/protocol/session.py
+++ b/ucs-4.0-2/management/univention-management-console/src/univention/management/console/protocol/session.py
@@ -260,10 +260,11 @@ def shutdown(self):
 	def __del__(self):
 		CORE.process('Processor: dying')
 		for process in self.__processes.values():
-			#process.__del__()  # calling this will cause python notifier to fail hard! Bug #37457
+			process.__del__()
 			del process
 		if self.lo:
 			self.lo.lo.lo.unbind()  # close the connection to LDAP
+			self.lo = None
 
 	def get_module_name(self, command):
 		"""Returns the name of the module that provides the given command