diff --git a/frontend/src/services/bookings.ts b/frontend/src/services/bookings.ts
index 7375c12..b61a17e 100644
--- a/frontend/src/services/bookings.ts
+++ b/frontend/src/services/bookings.ts
@@ -122,10 +122,10 @@ export const bookingApi = {
 // Booking categories
 // ---------------------------------------------------------------------------
 export const kategorieApi = {
-  getAll: () => api.get<BuchungsKategorie[]>('/api/buchungskategorien').then((r) => r.data),
-  getActive: () => api.get<BuchungsKategorie[]>('/api/buchungskategorien/active').then((r) => r.data),
-  create: (data: Omit<BuchungsKategorie, 'id'>) => api.post<BuchungsKategorie>('/api/buchungskategorien', data).then((r) => r.data),
-  update: (id: number, data: Partial<BuchungsKategorie>) => api.patch<BuchungsKategorie>(`/api/buchungskategorien/${id}`, data).then((r) => r.data),
+  getAll: () => api.get<{ success: boolean; data: BuchungsKategorie[] }>('/api/buchungskategorien').then((r) => r.data.data),
+  getActive: () => api.get<{ success: boolean; data: BuchungsKategorie[] }>('/api/buchungskategorien/active').then((r) => r.data.data),
+  create: (data: Omit<BuchungsKategorie, 'id'>) => api.post<{ success: boolean; data: BuchungsKategorie }>('/api/buchungskategorien', data).then((r) => r.data.data),
+  update: (id: number, data: Partial<BuchungsKategorie>) => api.patch<{ success: boolean; data: BuchungsKategorie }>(`/api/buchungskategorien/${id}`, data).then((r) => r.data.data),
   delete: (id: number) => api.delete(`/api/buchungskategorien/${id}`).then((r) => r.data),
 };