diff --git a/src/app/register/RegisterForm.tsx b/src/app/register/RegisterForm.tsx
index 4106f02..100b558 100644
--- a/src/app/register/RegisterForm.tsx
+++ b/src/app/register/RegisterForm.tsx
@@ -54,6 +54,7 @@ export default function RegisterForm({ ticket }: { ticket: string }) {
   const passwordRef = React.useRef<HTMLInputElement>(null);
   const confirmPasswordRef = React.useRef<HTMLInputElement>(null);
   const avatarRef = React.useRef<HTMLInputElement>(null);
+  const submitRef = React.useRef<HTMLInputElement>(null);
 
   const [usernameTaken, setUsernameTaken] = React.useState(false);
   const [passwordMismatch, setPasswordMismatch] = React.useState(false);
@@ -64,6 +65,7 @@ export default function RegisterForm({ ticket }: { ticket: string }) {
       <form
         onSubmit={async (e) => {
           e.preventDefault();
+          submitRef.current!.disabled = true;
 
           const [username, displayName, email, password, confirmPassword] = [
             usernameRef,
@@ -101,6 +103,7 @@ export default function RegisterForm({ ticket }: { ticket: string }) {
               avatarBase64
             })
           });
+          submitRef.current!.disabled = false;
 
           if (req.status === 500) {
             // something real bad fucked up
@@ -191,7 +194,7 @@ export default function RegisterForm({ ticket }: { ticket: string }) {
         />
 
         <div className={styles.buttonContainer}>
-          <input type="submit" value="Join NotNet!" />
+          <input type="submit" value="Join NotNet!" ref={submitRef} />
         </div>
       </form>
     </div>