diff --git a/src/components/DeviceLoginForm.tsx b/src/components/DeviceLoginForm.tsx
index 16e7f2e1f..0a05e46d3 100644
--- a/src/components/DeviceLoginForm.tsx
+++ b/src/components/DeviceLoginForm.tsx
@@ -319,6 +319,7 @@ export default function DeviceLoginForm({
                                         <div className="flex justify-center">
                                             <InputOTP
                                                 maxLength={9}
+                                                pattern={REGEXP_ONLY_DIGITS_AND_CHARS}
                                                 {...field}
                                                 value={field.value
                                                     .replace(/-/g, "")