diff --git a/Koha/Acquisition/Order.pm b/Koha/Acquisition/Order.pm
index 214d7fe69c..81dd56f70b 100644
--- a/Koha/Acquisition/Order.pm
+++ b/Koha/Acquisition/Order.pm
@@ -468,6 +468,7 @@ sub to_api_mapping {
     return {
         basketno                      => 'basket_id',
         biblionumber                  => 'biblio_id',
+        deleted_biblionumber          => 'deleted_biblio_id',
         budget_id                     => 'fund_id',
         budgetdate                    => undef,                    # unused
         cancellationreason            => 'cancellation_reason',
diff --git a/api/v1/swagger/definitions/order.yaml b/api/v1/swagger/definitions/order.yaml
index fbe380f6f9..5df8374b25 100644
--- a/api/v1/swagger/definitions/order.yaml
+++ b/api/v1/swagger/definitions/order.yaml
@@ -9,6 +9,11 @@ properties:
       - integer
       - "null"
     description: Identifier for the linked bibliographic record
+  deleted_biblio_id:
+    type:
+      - integer
+      - "null"
+    description: Identifier for the linked deleted bibliographic record
   created_by:
     type:
       - integer