diff --git a/src/routes/+layout.svelte b/src/routes/+layout.svelte
index 9ef0798..fb5f2fa 100644
--- a/src/routes/+layout.svelte
+++ b/src/routes/+layout.svelte
@@ -227,6 +227,7 @@
         <Input
           name="username"
           value={data.user.username}
+          maxlength={10}
           placeholder="Username"
           autocomplete="username"
         >