diff --git a/queue.go b/queue.go
index ac6f981..3fdcf19 100644
--- a/queue.go
+++ b/queue.go
@@ -538,6 +538,10 @@ func (q *RateEnvelopeQueue) Stop() {
 	q.setState(StateStopped)
 	q.lifecycleMu.Unlock()
 
+	if runCancel != nil {
+		runCancel()
+	}
+
 	q.queueMu.Lock()
 	q.queue = nil
 	q.queueMu.Unlock()