diff --git a/modoboa/static/js/confirmation.js b/modoboa/static/js/confirmation.js
index bf2fe35bd..629ac0b85 100644
--- a/modoboa/static/js/confirmation.js
+++ b/modoboa/static/js/confirmation.js
@@ -13,7 +13,7 @@
 
              this.box = this.buildbox();
              this.box.modal();
-             this.box.on('hidden', $.proxy(this.hidden_callback, this));
+             this.box.on('hidden.bs.modal', $.proxy(this.hidden_callback, this));
          },
 
          buildcheckboxes: function() {