diff --git a/addons/mrp/models/stock_move.py b/addons/mrp/models/stock_move.py
index ff474a117e5..09f5e35bea4 100644
--- a/addons/mrp/models/stock_move.py
+++ b/addons/mrp/models/stock_move.py
@@ -288,7 +288,7 @@ class StockMove(models.Model):
         if self.env.context.get('force_manual_consumption'):
             vals['manual_consumption'] = True
         if vals.get('manual_consumption'):
-            self.picked = True
+            vals['picked'] = True
         if 'product_uom_qty' in vals and 'move_line_ids' in vals:
             # first update lines then product_uom_qty as the later will unreserve
             # so possibly unlink lines