diff --git a/rma/wizards/rma_make_picking.py b/rma/wizards/rma_make_picking.py
index e066d07f..0b92b1d8 100644
--- a/rma/wizards/rma_make_picking.py
+++ b/rma/wizards/rma_make_picking.py
@@ -264,7 +264,9 @@ class RmaMakePickingItem(models.TransientModel):
     _name = "rma_make_picking.wizard.item"
     _description = "Items to receive"
 
-    wiz_id = fields.Many2one("rma_make_picking.wizard", string="Wizard", required=True)
+    wiz_id = fields.Many2one(
+        "rma_make_picking.wizard", string="Wizard", required=True, ondelete="cascade"
+    )
     line_id = fields.Many2one(
         "rma.order.line", string="RMA order Line", ondelete="cascade"
     )