diff --git a/js/ui/components/polkitAgent.js b/js/ui/components/polkitAgent.js
index d77f797c0..693d1d235 100644
--- a/js/ui/components/polkitAgent.js
+++ b/js/ui/components/polkitAgent.js
@@ -327,6 +327,8 @@ var AuthenticationDialog = GObject.registerClass({
         }
 
         let resetDialog = () => {
+            this._sessionRequestTimeoutId = 0;
+
             if (this.state != ModalDialog.State.OPENED)
                 return GLib.SOURCE_REMOVE;