diff --git a/src/components/Header.tsx b/src/components/Header.tsx
index 2badb771..79530443 100644
--- a/src/components/Header.tsx
+++ b/src/components/Header.tsx
@@ -21,7 +21,8 @@ function Header(props) {
         <form id="open-file">
           <input type="file" hidden ref={fileInput} accept="application/json"
                  onChange={() => parseFile(fileInput.current.files[0]).then(saveDataAndRedirect)}/>
-          <button className="icon-only" onClick={() => {
+          <button className="icon-only" onClick={e => {
+            e.preventDefault();
             fileInput.current.click();
           }}>📁
           </button>