diff --git a/frontend/src/app/dashboard/tickets/page.tsx b/frontend/src/app/dashboard/tickets/page.tsx
index 5cc4709..312b33d 100644
--- a/frontend/src/app/dashboard/tickets/page.tsx
+++ b/frontend/src/app/dashboard/tickets/page.tsx
@@ -122,7 +122,7 @@ export default function AdminTicketsPage() {
                                             {ticket.id.substring(0, 8)}...
                                         </TableCell>
                                         <TableCell className="font-medium">{ticket.subject}</TableCell>
-                                        <TableCell className="text-xs text-muted-foreground font-mono" title={ticket.userId}>
+                                        <TableCell className="text-xs text-muted-foreground font-mono" title={String(ticket.userId)}>
                                             {ticket.userId}
                                         </TableCell>
                                         <TableCell>{getStatusBadge(ticket.status)}</TableCell>