diff --git a/common/rfb/VNCServerST.cxx b/common/rfb/VNCServerST.cxx
index 838f06c..fc2e931 100644
--- a/common/rfb/VNCServerST.cxx
+++ b/common/rfb/VNCServerST.cxx
@@ -147,6 +147,7 @@
         slog.debug("no authenticated clients - stopping desktop");
         desktopStarted = false;
         desktop->stop();
+        setVideoRectangle(Rect(0, 0, 0, 0));
       }
       return;
     }