diff --git a/addons/mrp/models/mrp_production.py b/addons/mrp/models/mrp_production.py
index 0ff2bd4e7b1..7393133e070 100644
--- a/addons/mrp/models/mrp_production.py
+++ b/addons/mrp/models/mrp_production.py
@@ -1933,9 +1933,10 @@ class MrpProduction(models.Model):
                 order_exception, visited = exception
                 order_exceptions.update(order_exception)
                 visited_objects += visited
-            visited_objects = self.env[visited_objects[0]._name].concat(*visited_objects)
+            visited_objects = [sm for sm in visited_objects if sm._name == 'stock.move']
             impacted_object = []
-            if visited_objects and visited_objects._name == 'stock.move':
+            if visited_objects:
+                visited_objects = self.env[visited_objects[0]._name].concat(*visited_objects)
                 visited_objects |= visited_objects.mapped('move_orig_ids')
                 impacted_object = visited_objects.filtered(lambda m: m.state not in ('done', 'cancel')).mapped('picking_id')
             values = {