diff --git a/addons/purchase_requisition/models/purchase_requisition.py b/addons/purchase_requisition/models/purchase_requisition.py
index 92b789c090f9f..68505de7a03ed 100644
--- a/addons/purchase_requisition/models/purchase_requisition.py
+++ b/addons/purchase_requisition/models/purchase_requisition.py
@@ -71,7 +71,8 @@ def _get_type_id(self):
 
     @api.depends('state')
     def _set_state(self):
-        self.state_blanket_order = self.state
+        for requisition in self:
+            requisition.state_blanket_order = requisition.state
 
     @api.onchange('vendor_id')
     def _onchange_vendor(self):