diff --git a/examples/with-knex/pages/index.js b/examples/with-knex/pages/index.js
index a7cbf37c32a2d..28b4c1b042e4f 100644
--- a/examples/with-knex/pages/index.js
+++ b/examples/with-knex/pages/index.js
@@ -29,7 +29,7 @@ export default function Home() {
         {todos &&
           todos.map((todo) => {
             return (
-              <p className="todos-item">
+              <p className="todos-item" key={todo.id}>
                 {todo.text} {todo.done && '(complete)'}
               </p>
             )