diff --git a/addons/l10n_din5008_purchase/models/purchase.py b/addons/l10n_din5008_purchase/models/purchase.py
index db7041932ee..a88a254e577 100644
--- a/addons/l10n_din5008_purchase/models/purchase.py
+++ b/addons/l10n_din5008_purchase/models/purchase.py
@@ -32,9 +32,9 @@ class PurchaseOrder(models.Model):
 
     def _compute_l10n_din5008_document_title(self):
         for record in self:
-            if record.state == 'draft':
+            if record.state in ['draft', 'sent', 'to approve']:
                 record.l10n_din5008_document_title = _("Request for Quotation")
-            elif record.state in ['sent', 'to approve', 'purchase', 'done']:
+            elif record.state in ['purchase', 'done']:
                 record.l10n_din5008_document_title = _("Purchase Order")
             elif record.state == 'cancel':
                 record.l10n_din5008_document_title = _("Cancelled Purchase Order")