diff --git a/examples/next/src/app/fathom.tsx b/examples/next/src/app/fathom.tsx
index 4f967910..efac2475 100644
--- a/examples/next/src/app/fathom.tsx
+++ b/examples/next/src/app/fathom.tsx
@@ -20,7 +20,7 @@ function TrackPageView() {
     if (!pathname) return;
 
     trackPageview({
-      url: pathname + searchParams.toString(),
+      url: pathname + searchParams?.toString() ?? "",
       referrer: document.referrer,
     });
   }, [pathname, searchParams]);