diff --git a/capsule-prototype/js/PopupPanelWidget.js b/capsule-prototype/js/PopupPanelWidget.js
index cd588f079bb370b3de49eaad42fb34e53efe8006..ec9040b53f50c2db4917f52fedd7c9c284bc208d 100644
--- a/capsule-prototype/js/PopupPanelWidget.js
+++ b/capsule-prototype/js/PopupPanelWidget.js
@@ -925,7 +925,7 @@ PopupPanelWidget.prototype.createPopupContent = function (tag) {
             }
             deleteElement
                 .click(function () {
-                    window.app.rekall.Rekall('pubSub').publish('', {
+                    window.app.rekall.Rekall('pubSub').publish('alert', {
                         message: "Do you really want to delete this file from the project ?",
                         buttons: "yesnodelete"
                     });