diff --git a/vncviewer/DesktopWindow.cxx b/vncviewer/DesktopWindow.cxx

index 8f387dc..a93aa50 100644

--- a/vncviewer/DesktopWindow.cxx

+++ b/vncviewer/DesktopWindow.cxx

@@ -824,8 +824,8 @@ void DesktopWindow::ungrabKeyboard()

   serial = XNextRequest(fl_display);

-  XUngrabPointer(fl_display, fl_event_time);

-  XUngrabKeyboard(fl_display, fl_event_time);

+  XUngrabPointer(fl_display, CurrentTime);

+  XUngrabKeyboard(fl_display, CurrentTime);

   // See grabKeyboard()

   XSync(fl_display, False);