diff --git a/shell/lock/LockSurface.qml b/shell/lock/LockSurface.qml
index 5a7c8eb..6ed9a26 100644
--- a/shell/lock/LockSurface.qml
+++ b/shell/lock/LockSurface.qml
@@ -40,7 +40,9 @@ WlSessionLockSurface {
 
             onUPhaseChanged: {
                 if (!_overlay._revealed && uPhase >= _overlay.width)
-                    _overlay._revealed = true;
+                    Qt.callLater(() => {
+                        _overlay._revealed = true;
+                    });
             }
         }