diff --git a/src/js/app.js b/src/js/app.js
index a9c55fc..2c70ea0 100644
--- a/src/js/app.js
+++ b/src/js/app.js
@@ -40,7 +40,7 @@ App = {
     $(document).on('click', '#transferButton', App.handleTransfer);
   },
 
-  handleTransfer: function() {
+  handleTransfer: function(event) {
     event.preventDefault();
 
     var amount = parseInt($('#TTTransferAmount').val());