diff --git a/templates/errors/404.html b/templates/errors/404.html
index f2d13c5..0413b88 100644
--- a/templates/errors/404.html
+++ b/templates/errors/404.html
@@ -29,7 +29,7 @@
     <section class="min-width">
         <h2>Submit score</h2>
         <form action="/snake/submit" method="POST" id="snakeForm">
-            <input type="text" id="name" name="name" placeholder="Your name" required>
+            <input type="text" id="name" name="name" maxlength=15 minlength=3 placeholder="Your name" required>
             <cap-widget id="captcha" data-cap-api-endpoint="https://cap.alfieking.dev/{{ cap_key }}/"></cap-widget>
             <input type="hidden" id="score" name="score" value="0">
             <input type="hidden" id="game_token" name="game_token" value="{{ token}}">