diff --git a/addons/stock/stock.py b/addons/stock/stock.py
index 69d51eea942..c2080827fb0 100644
--- a/addons/stock/stock.py
+++ b/addons/stock/stock.py
@@ -2345,6 +2345,7 @@ class stock_move(osv.osv):
         main_domain = {}
         todo_moves = []
         operations = set()
+        self.do_unreserve(cr, uid, [x.id for x in self.browse(cr, uid, ids, context=context) if x.reserved_quant_ids and x.state in ['confirmed', 'waiting', 'assigned']], context=context)
         for move in self.browse(cr, uid, ids, context=context):
             if move.state not in ('confirmed', 'waiting', 'assigned'):
                 continue