diff --git a/src/app/sitemap.ts b/src/app/sitemap.ts
index bd6f258..d6fd5b9 100644
--- a/src/app/sitemap.ts
+++ b/src/app/sitemap.ts
@@ -24,6 +24,14 @@ export default async function sitemap(): Promise<MetadataRoute.Sitemap> {
       changeFrequency: "weekly" as const,
       priority: 0.9,
     })),
+    {
+      // "worldwide" is not an entry in countries.json, so it has to be added
+      // explicitly or /leaderboard/worldwide never reaches sitemap.xml.
+      url: `${baseUrl}/leaderboard/worldwide`,
+      lastModified: now,
+      changeFrequency: "weekly",
+      priority: 0.9,
+    },
     {
       url: `${baseUrl}/leaderboard`,
       lastModified: now,