diff --git a/web/src/pages/stages/invitation/InvitationListPage.ts b/web/src/pages/stages/invitation/InvitationListPage.ts
index 08dbb6917..fa273668f 100644
--- a/web/src/pages/stages/invitation/InvitationListPage.ts
+++ b/web/src/pages/stages/invitation/InvitationListPage.ts
@@ -56,7 +56,7 @@ export class InvitationListPage extends TablePage<Invitation> {
         return [
             html`${item.pk}`,
             html`${item.createdBy?.username}`,
-            html`${item.expires?.toLocaleString()}`,
+            html`${item.expires?.toLocaleString() || "-"}`,
             html`
             <ak-forms-delete
                 .obj=${item}