diff --git a/imports/NeoChat/Page/RoomPage.qml b/imports/NeoChat/Page/RoomPage.qml
index 5894091c8..3da87a2ac 100644
--- a/imports/NeoChat/Page/RoomPage.qml
+++ b/imports/NeoChat/Page/RoomPage.qml
@@ -260,7 +260,7 @@ Kirigami.ScrollablePage {
         }
 
         onAtYEndChanged: if (atYEnd && hasScrolledUpBefore) {
-            if (QQC2.ApplicationWindow.window.visibility !== QQC2.ApplicationWindow.Hidden) {
+            if (QQC2.ApplicationWindow.window && (QQC2.ApplicationWindow.window.visibility !== QQC2.ApplicationWindow.Hidden)) {
                 currentRoom.markAllMessagesAsRead();
             }
             hasScrolledUpBefore = false;