diff --git a/addons/mrp/models/mrp_unbuild.py b/addons/mrp/models/mrp_unbuild.py
index 6c87ed8614e..0ff3db0a337 100644
--- a/addons/mrp/models/mrp_unbuild.py
+++ b/addons/mrp/models/mrp_unbuild.py
@@ -88,6 +88,10 @@ class MrpUnbuild(models.Model):
         if self.product_id.tracking != 'none' and not self.lot_id.id:
             raise UserError(_('Should have a lot for the finished product'))
 
+        if self.mo_id:
+            if self.mo_id.state != 'done':
+                raise UserError(_('You cannot unbuild a undone manufacturing order.'))
+
         consume_move = self._generate_consume_moves()[0]
         produce_moves = self._generate_produce_moves()
 
@@ -156,12 +160,31 @@ class MrpUnbuild(models.Model):
     def _generate_produce_moves(self):
         moves = self.env['stock.move']
         for unbuild in self:
-            factor = unbuild.product_uom_id._compute_quantity(unbuild.product_qty, unbuild.bom_id.product_uom_id) / unbuild.bom_id.product_qty
-            boms, lines = unbuild.bom_id.explode(unbuild.product_id, factor, picking_type=unbuild.bom_id.picking_type_id)
-            for line, line_data in lines:
-                moves += unbuild._generate_move_from_bom_line(line, line_data['qty'])
+            if unbuild.mo_id:
+                raw_moves = unbuild.mo_id.move_raw_ids.filtered(lambda move: move.state == 'done')
+                factor = unbuild.product_qty / unbuild.mo_id.product_uom_id._compute_quantity(unbuild.mo_id.product_qty, unbuild.product_uom_id)
+                for raw_move in raw_moves:
+                    moves += unbuild._generate_move_from_raw_moves(raw_move, factor)
+            else:
+                factor = unbuild.product_uom_id._compute_quantity(unbuild.product_qty, unbuild.bom_id.product_uom_id) / unbuild.bom_id.product_qty
+                boms, lines = unbuild.bom_id.explode(unbuild.product_id, factor, picking_type=unbuild.bom_id.picking_type_id)
+                for line, line_data in lines:
+                    moves += unbuild._generate_move_from_bom_line(line, line_data['qty'])
         return moves
 
+    def _generate_move_from_raw_moves(self, raw_move, factor):
+        return self.env['stock.move'].create({
+            'name': self.name,
+            'date': self.create_date,
+            'product_id': raw_move.product_id.id,
+            'product_uom_qty': raw_move.product_uom_qty * factor,
+            'product_uom': raw_move.product_uom.id,
+            'procure_method': 'make_to_stock',
+            'location_dest_id': self.location_dest_id.id,
+            'location_id': raw_move.location_dest_id.id,
+            'unbuild_id': self.id,
+        })
+
     def _generate_move_from_bom_line(self, bom_line, quantity):
         return self.env['stock.move'].create({
             'name': self.name,
diff --git a/addons/mrp/views/mrp_unbuild_views.xml b/addons/mrp/views/mrp_unbuild_views.xml
index 6692e735f36..d71d49138c5 100644
--- a/addons/mrp/views/mrp_unbuild_views.xml
+++ b/addons/mrp/views/mrp_unbuild_views.xml
@@ -122,7 +122,7 @@
                                 </div>
                             </group>
                             <group>
-                                <field name="mo_id" required="True"/>
+                                <field name="mo_id" domain="[('state','=','done')]" required="True"/>
                                 <field name="location_id" groups="stock.group_stock_multi_locations"/>
                                 <field name="location_dest_id" groups="stock.group_stock_multi_locations"/>
                                 <field name="has_tracking" invisible="1"/>