diff --git a/packet_handler_map.go b/packet_handler_map.go
index 919c2304..06692e93 100644
--- a/packet_handler_map.go
+++ b/packet_handler_map.go
@@ -22,33 +22,6 @@ import (
 	"github.com/lucas-clemente/quic-go/logging"
 )
 
-type zeroRTTQueue struct {
-	queue       []*receivedPacket
-	retireTimer *time.Timer
-}
-
-var _ packetHandler = &zeroRTTQueue{}
-
-func (h *zeroRTTQueue) handlePacket(p *receivedPacket) {
-	if len(h.queue) < protocol.Max0RTTQueueLen {
-		h.queue = append(h.queue, p)
-	}
-}
-func (h *zeroRTTQueue) shutdown()                            {}
-func (h *zeroRTTQueue) destroy(error)                        {}
-func (h *zeroRTTQueue) getPerspective() protocol.Perspective { return protocol.PerspectiveClient }
-func (h *zeroRTTQueue) EnqueueAll(sess packetHandler) {
-	for _, p := range h.queue {
-		sess.handlePacket(p)
-	}
-}
-
-func (h *zeroRTTQueue) Clear() {
-	for _, p := range h.queue {
-		p.buffer.Release()
-	}
-}
-
 // rawConn is a connection that allow reading of a receivedPacket.
 type rawConn interface {
 	ReadPacket() (*receivedPacket, error)
diff --git a/zero_rtt_queue.go b/zero_rtt_queue.go
new file mode 100644
index 00000000..7ad7ee10
--- /dev/null
+++ b/zero_rtt_queue.go
@@ -0,0 +1,34 @@
+package quic
+
+import (
+	"time"
+
+	"github.com/lucas-clemente/quic-go/internal/protocol"
+)
+
+type zeroRTTQueue struct {
+	queue       []*receivedPacket
+	retireTimer *time.Timer
+}
+
+var _ packetHandler = &zeroRTTQueue{}
+
+func (h *zeroRTTQueue) handlePacket(p *receivedPacket) {
+	if len(h.queue) < protocol.Max0RTTQueueLen {
+		h.queue = append(h.queue, p)
+	}
+}
+func (h *zeroRTTQueue) shutdown()                            {}
+func (h *zeroRTTQueue) destroy(error)                        {}
+func (h *zeroRTTQueue) getPerspective() protocol.Perspective { return protocol.PerspectiveClient }
+func (h *zeroRTTQueue) EnqueueAll(sess packetHandler) {
+	for _, p := range h.queue {
+		sess.handlePacket(p)
+	}
+}
+
+func (h *zeroRTTQueue) Clear() {
+	for _, p := range h.queue {
+		p.buffer.Release()
+	}
+}