diff --git a/common/turbotunnel/queuepacketconn_test.go b/common/turbotunnel/queuepacketconn_test.go
index 30e69e3..312e665 100644
--- a/common/turbotunnel/queuepacketconn_test.go
+++ b/common/turbotunnel/queuepacketconn_test.go
@@ -214,7 +214,8 @@ func TestQueuePacketConnWriteToKCP(t *testing.T) {
 		}
 
 		// A sleep after the Write makes buffer reuse more likely.
-		time.Sleep(100 * time.Millisecond)
+		// We need to sleep to allow the connection to flush after close
+		time.Sleep(1 * time.Second)
 
 		if len(transcript.Transcript) == 0 {
 			panic("empty transcript")