diff --git a/src/hooks/usePlanData.ts b/src/hooks/usePlanData.ts
index db53674..3fd2fa7 100644
--- a/src/hooks/usePlanData.ts
+++ b/src/hooks/usePlanData.ts
@@ -79,7 +79,15 @@ export function usePlanData({ companyId, pageSize = PAGINATION_CONFIG.defaultPag
 
     try {
       const res = await purchaserApi.listPlans({ page, page_size: pageSize });
-      const { plans: planDetails, factories, plan_factories, operator_names } = res.data;
+      const rawData = res.data;
+
+      // API returns plain array when backend doesn't wrap in object
+      const planDetails: PlanDetail[] = Array.isArray(rawData)
+        ? rawData
+        : (rawData?.plans || []);
+      const factories: Company[] = Array.isArray(rawData) ? [] : (rawData?.factories || []);
+      const plan_factories: PlanFactory[] = Array.isArray(rawData) ? [] : (rawData?.plan_factories || []);
+      const operator_names: Record<string, string> = Array.isArray(rawData) ? {} : (rawData?.operator_names || {});
 
       const plansWithSteps = planDetails.map(mapPlanDetail);