diff --git a/frontend/services/dto/bovine-data.ts b/frontend/services/dto/bovine-data.ts
index de2425d..dbe9f84 100644
--- a/frontend/services/dto/bovine-data.ts
+++ b/frontend/services/dto/bovine-data.ts
@@ -1,8 +1,10 @@
 export interface BovineBuildingRef {
+    id: number
     label: string
 }
 
 export interface BovineBuildingCaseRef {
+    id: number
     caseNumber: number | null
     building: BovineBuildingRef | null
 }