diff --git a/production.py b/production.py
index afdcdc3..85e6ec5 100644
--- a/tryton/modules/production/production.py
+++ b/tryton/modules/production/production.py
@@ -467,6 +467,13 @@ class Production(Workflow, ModelSQL, ModelView):
             if move.production_input not in productions:
                 cls.__queue__.set_cost([move.production_input])
                 productions.add(move.production_input)
+        pending_productions = cls.search([
+                ('inputs', '=', None),
+                ('state', '!=', 'cancel'),
+                ])
+        for production in pending_productions:
+            cls.__queue__.set_cost([production])
+            productions.add(production)
         Move.write(moves, {'production_cost_price_updated': False})
 
     @classmethod