diff --git a/static/main.js b/static/main.js
index bb52829..65c7cda 100644
--- a/static/main.js
+++ b/static/main.js
@@ -5,7 +5,9 @@ async function formClick(ev) {
 
     let fData = new FormData(target);
 
-    target.querySelector('input[type=file]').value = null;
+    let file = target.querySelector('input[type=file]');
+    if (file)
+        file.value = null;
 
     let fetched = await fetch(target.action, {
         'method': 'POST',