diff --git a/ui/allg5ui/renderer.go b/ui/allg5ui/renderer.go
index fd4fcfc..d162987 100644
--- a/ui/allg5ui/renderer.go
+++ b/ui/allg5ui/renderer.go
@@ -54,7 +54,10 @@ func (r *Renderer) PushEvents(t ui.EventTarget, wait bool) {
 
 	r.newCursor = ui.MouseCursorDefault
 	var ev = eventWait(r.eq, wait)
-	for nil != ev {
+	if ev == nil {
+		return
+	}
+	for ev != nil {
 		switch e := ev.(type) {
 		case *allg5.DisplayCloseEvent:
 			t.Handle(&ui.DisplayCloseEvent{EventBase: eventBase(e)})