diff --git a/src/app/f/[folderId]/page.tsx b/src/app/f/[folderId]/page.tsx
index 270260c..55d8e8a 100644
--- a/src/app/f/[folderId]/page.tsx
+++ b/src/app/f/[folderId]/page.tsx
@@ -1,3 +1,4 @@
+import { z } from "zod";
 import DriveContents from "./drive-contents";
 import { QUERIES } from "~/server/db/queries";
 
@@ -6,10 +7,15 @@ export default async function GoogleDriveClone(props: {
 }) {
   const params = await props.params;
 
-  const parsedFolderId = parseInt(params.folderId);
-  if (isNaN(parsedFolderId)) {
-    return <div>Invalid folder ID</div>;
-  }
+  const { data, success } = z
+    .object({
+      folderId: z.coerce.number(),
+    })
+    .safeParse(params);
+
+  if (!success) return <div>Invalid folder ID</div>;
+
+  const parsedFolderId = data.folderId;
 
   const [folders, files, parents] = await Promise.all([
     QUERIES.getFolders(parsedFolderId),