diff --git a/move.py b/move.py
index f67f58e..0b63b19 100644
--- a/move.py
+++ b/move.py
@@ -69,8 +69,7 @@ class ShipmentOut(metaclass=PoolMeta):
         cls._buttons.update({
             'maintenance_initial': {
                 'invisible': ((Eval('service_maintenance_initial',True))
-                              | (Eval('sale_type').in_(['maintenance', 'replaces']))
-                              | (Eval('state') == 'done'))}
+                              | (Eval('sale_type').in_(['maintenance', 'replaces'])))}
         })
         
     def get_outgoing_moves(self, name):