diff --git a/ext/upload/theme.php b/ext/upload/theme.php
index 839880d9c..daaeed541 100644
--- a/ext/upload/theme.php
+++ b/ext/upload/theme.php
@@ -112,6 +112,8 @@ protected function build_upload_list(): HTMLElement
         # probably not a good idea to show more file inputs than max_file_uploads
         if($form_count > $upload_count) {
             $form_count = $upload_count;
+        } elseif ($form_count < 1) {
+            $form_count = 1;
         }
         for ($i = 0; $i < $form_count; $i++) {
             $upload_list->appendChild(