diff --git a/v2/request.go b/v2/request.go
index e30bd70..a5af8bd 100644
--- a/v2/request.go
+++ b/v2/request.go
@@ -255,6 +255,10 @@ func (request *Request) HandlePropertyNotify (
 	connection *xgbutil.XUtil,
 	event xevent.PropertyNotifyEvent,
 ) {
+	// ignore events that don't apply to our window's destination property
+	if event.Window != request.requestor.Window().Id { return }
+	if event.Atom   != request.destination           { return }
+
 	// the only valid state that we can process a PropertyNotify event in
 	if request.state != selReqStateAwaitChunk { return }
 	if event.State != xproto.PropertyNewValue { return }