diff --git a/Koha/Booking.pm b/Koha/Booking.pm
index e5297d8d17..403ca3bf4e 100644
--- a/Koha/Booking.pm
+++ b/Koha/Booking.pm
@@ -241,7 +241,10 @@ on the API.
 =cut
 
 sub to_api_mapping {
-    return {};
+    return {
+        created_on => "creation_date",
+        updated_on => "modification_date"
+    };
 }
 
 =head3 delete
diff --git a/api/v1/swagger/definitions/booking.yaml b/api/v1/swagger/definitions/booking.yaml
index 5a7b8cc77b..d6db77263c 100644
--- a/api/v1/swagger/definitions/booking.yaml
+++ b/api/v1/swagger/definitions/booking.yaml
@@ -10,6 +10,10 @@ properties:
   booking_id:
     description: Internal booking identifier
     type: integer
+  creation_date:
+    description: Creation date and time of this booking
+    format: date-time
+    type: string
   end_date:
     description: Start date and time of this booking
     format: date-time
@@ -24,6 +28,10 @@ properties:
     type:
       - object
       - 'null'
+  modification_date:
+    description: Modification date and time of this booking
+    format: date-time
+    type: string
   patron_id:
     description: Internal patron identifier
     type: integer