diff --git a/src/js/window.js b/src/js/window.js
index f972fa1..abb9c8c 100644
--- a/src/js/window.js
+++ b/src/js/window.js
@@ -30,7 +30,7 @@ export default class WindowHandler {
   }
 
   enableFileTransfer() {
-    if (!this.fileHandler.isSupported) {
+    if (this.fileHandler.isSupported) {
       $('#send-file').click((e) => {
         e.preventDefault();
         $('#fileInput').trigger('click');