diff --git a/hyperdrive/src/register-ui/src/components/BackButton.tsx b/hyperdrive/src/register-ui/src/components/BackButton.tsx
index 92232e1be..6d898a006 100644
--- a/hyperdrive/src/register-ui/src/components/BackButton.tsx
+++ b/hyperdrive/src/register-ui/src/components/BackButton.tsx
@@ -3,7 +3,7 @@ import classNames from "classnames";
 
 export default function BackButton({ mode = "wide", className }: { mode?: "narrow" | "wide", className?: string }) {
     return (
-        <button onClick={() => history.back()} className={classNames(
+        <button type="button" onClick={() => history.back()} className={classNames(
             {
                 'icon absolute top-2 left-2': mode === "narrow",
                 'clear': mode === 'wide',