diff --git a/apps/shinkai-visor/src/components/inboxes/inboxes.tsx b/apps/shinkai-visor/src/components/inboxes/inboxes.tsx
index 23e8e15df..6a2aed180 100644
--- a/apps/shinkai-visor/src/components/inboxes/inboxes.tsx
+++ b/apps/shinkai-visor/src/components/inboxes/inboxes.tsx
@@ -66,7 +66,7 @@ export const Inboxes = () => {
   const navigateToInbox = (inbox: {
     inbox_id: string;
     custom_name: string;
-    last_message: ShinkaiMessage;
+    last_message?: ShinkaiMessage;
   }) => {
     history.push(`/inboxes/${encodeURIComponent(inbox.inbox_id)}`, { inbox });
   };
@@ -136,8 +136,8 @@ export const Inboxes = () => {
                             </div>
                           </div>
                         </div>
-                        <span className="shrink-0 self-start pt-[2px] text-xs lowercase text-gray-100">
-                          {inbox.last_message.external_metadata
+                        <span className="min-w-[32px] text-end shrink-0 self-start pt-[2px] text-xs lowercase text-gray-100">
+                          {inbox.last_message?.external_metadata
                             ?.scheduled_time &&
                             formatDateToMonthAndDay(
                               new Date(
diff --git a/libs/shinkai-message-ts/src/models/ShinkaiMessage.ts b/libs/shinkai-message-ts/src/models/ShinkaiMessage.ts
index e329b3fc5..4fdcfe985 100644
--- a/libs/shinkai-message-ts/src/models/ShinkaiMessage.ts
+++ b/libs/shinkai-message-ts/src/models/ShinkaiMessage.ts
@@ -54,5 +54,5 @@ export interface RegistrationCode {
 export type SmartInbox = {
   custom_name: string;
   inbox_id: string;
-  last_message: ShinkaiMessage;
+  last_message?: ShinkaiMessage;
 };
\ No newline at end of file