diff --git a/openbox/frame.c b/openbox/frame.c
index 052f12df..991e9adc 100644
--- a/openbox/frame.c
+++ b/openbox/frame.c
@@ -498,6 +498,7 @@ void frame_adjust_focus(ObFrame *self, gboolean hilite)
 {
     self->focused = hilite;
     framerender_frame(self);
+    XFlush(ob_display);
 }
 
 void frame_adjust_title(ObFrame *self)