diff --git a/maintenance.py b/maintenance.py
index 43d87a1..5532d15 100644
--- a/maintenance.py
+++ b/maintenance.py
@@ -51,8 +51,7 @@ class MaintenanceService(Workflow, ModelSQL, ModelView):
     propietary_address = fields.Many2One('party.address', "Propietary Address", required=True,
                                          domain=[('party', '=', Eval('propietary'))],
                                          states=_states)
-    lines = fields.One2Many('optical_equipment.maintenance', 'service_maintenance', "Lines",
-                            states={'readonly': If(Eval('state') != 'in_progress', True)})
+    lines = fields.One2Many('optical_equipment.maintenance', 'service_maintenance', "Lines")
     estimated_agended = fields.DateTime("Date Maintenance", states=_states)
     current_agended = fields.Many2One('optical_equipment_maintenance.diary', "Current Agended",
                                       states=_states)