diff --git a/data/dbus-interfaces/org.freedesktop.login1.Session.xml b/data/dbus-interfaces/org.freedesktop.login1.Session.xml
index 5ebf2edf8..68c7d1162 100644
--- a/data/dbus-interfaces/org.freedesktop.login1.Session.xml
+++ b/data/dbus-interfaces/org.freedesktop.login1.Session.xml
@@ -5,6 +5,7 @@
     <property name="Active" type="b" access="read"/>
     <property name="Class" type="s" access="read"/>
     <property name="Id" type="s" access="read"/>
+    <property name="Name" type="s" access="read"/>
     <property name="Remote" type="b" access="read"/>
     <property name="State" type="s" access="read"/>
     <property name="Type" type="s" access="read"/>
diff --git a/js/gdm/loginDialog.js b/js/gdm/loginDialog.js
index db83f4621..9e1c050f8 100644
--- a/js/gdm/loginDialog.js
+++ b/js/gdm/loginDialog.js
@@ -414,9 +414,10 @@ export const ConflictingSessionDialog = GObject.registerClass({
         'force-stop': {},
     },
 }, class ConflictingSessionDialog extends ModalDialog.ModalDialog {
-    _init(conflictingSession, greeterSession, userName) {
+    _init(conflictingSession, greeterSession) {
         super._init();
 
+        const userName = conflictingSession.Name;
         let bannerText;
         if (greeterSession.Remote && conflictingSession.Remote)
             /* Translators: is running for <username> */
@@ -1091,8 +1092,7 @@ export const LoginDialog = GObject.registerClass({
 
     _showConflictingSessionDialog(serviceName, conflictingSession) {
         let conflictingSessionDialog = new ConflictingSessionDialog(conflictingSession,
-            this._greeterSessionProxy,
-            this._user.get_user_name());
+            this._greeterSessionProxy);
 
         conflictingSessionDialog.connect('cancel', () => {
             this._authPrompt.reset();