diff --git a/js/app.js b/js/app.js
index 7c15112..2a2a8be 100644
--- a/js/app.js
+++ b/js/app.js
@@ -447,6 +447,7 @@ let game = new Vue({
 
                 this.generateQuest();
             } else {
+                alert('Not enough resources to redeem reward.');
                 return false;
             }
         },