diff --git a/src/api/supplier.js b/src/api/supplier.js
index 15155b2..4a480f1 100644
--- a/src/api/supplier.js
+++ b/src/api/supplier.js
@@ -12,6 +12,13 @@ export const supplier = {
   },
   // #endregion
 
+  /** GET /api/supplier/:id → { supplier: Supplier } */
+  // #region GET /api/supplier/:id — get
+  get(id) {
+    return http(`/api/supplier/${encodeURIComponent(id)}`);
+  },
+  // #endregion
+
   /**
    * POST /api/supplier
    * Body: { name } — empty name ⇒ 400 Name required.
diff --git a/src/components/manifest/BookDeliveryDialog.jsx b/src/components/manifest/BookDeliveryDialog.jsx
index 51c90c9..6efc545 100644
--- a/src/components/manifest/BookDeliveryDialog.jsx
+++ b/src/components/manifest/BookDeliveryDialog.jsx
@@ -98,8 +98,8 @@ export default class BookDeliveryDialog extends PureComponent {
   loadSupplierArticlesIfNeeded() {
     const supplierId = this.props.delivery?.supplierId ?? this.props.delivery?.partyId;
     if (supplierId && Object.keys(this.state.supplierArticlesMap).length === 0) {
-      void supplierApi.get(supplierId).then((res) => {
-        const articles = res?.supplier?.articles || res?.articles || [];
+      void supplierApi.getArticles(supplierId).then((res) => {
+        const articles = res?.articles || res?.supplier?.articles || [];
         const map = buildSupplierArticlesMap(articles);
         this.setState({ supplierArticlesMap: map });
       }).catch(() => {});