diff --git a/src/app/(app)/home/page.tsx b/src/app/(app)/home/page.tsx
index 450d4d8..c189508 100644
--- a/src/app/(app)/home/page.tsx
+++ b/src/app/(app)/home/page.tsx
@@ -401,9 +401,7 @@ export default function HomePage() {
             <div>
               <div className="font-semibold text-red-700">💊 Vaccine Reminder</div>
               <div className="text-sm text-red-600">
-                {vaccineReminders[0].status === "overdue"
-                  ? `${vaccineReminders[0].message}`
-                  : `${vaccineReminders[0].vaccineName} due today`}
+                {vaccineReminders[0].message}
               </div>
             </div>
             <span className="text-red-400">→</span>
diff --git a/src/app/api/notifications/route.ts b/src/app/api/notifications/route.ts
index 607a062..dfb32cf 100644
--- a/src/app/api/notifications/route.ts
+++ b/src/app/api/notifications/route.ts
@@ -83,6 +83,12 @@ export async function GET(request: NextRequest) {
     const child     = children[0];
     const birthDate = new Date(child.birth_date as string);
 
+    // Self-heal legacy data: an earlier generator stored "undefined" in the
+    // message ("undefined is N days overdue"). Those rows were frozen by
+    // ON CONFLICT DO NOTHING. Delete them so the upsert below regenerates them
+    // with the correct vaccine name.
+    await sql`DELETE FROM notifications WHERE family_id = ${familyId} AND message LIKE 'undefined%'`;
+
     // ── 1. Vaccine notifications ──────────────────────────────────────────────
     const given = await sql`
       SELECT vaccine_name FROM vaccinations
@@ -118,7 +124,11 @@ export async function GET(request: NextRequest) {
           ${dueDateStr}::date,
           ${JSON.stringify({ vaccineName: v.name, dueDate: dueDateStr })}::jsonb
         )
-        ON CONFLICT (family_id, child_id, type, scheduled_for) DO NOTHING
+        ON CONFLICT (family_id, child_id, type, scheduled_for) DO UPDATE SET
+          title      = EXCLUDED.title,
+          message    = EXCLUDED.message,
+          action_url = EXCLUDED.action_url,
+          metadata   = EXCLUDED.metadata
       `;
     }