diff --git a/stream.go b/stream.go
index 523236017..fc73b1e35 100644
--- a/stream.go
+++ b/stream.go
@@ -129,13 +129,6 @@ func (s *stream) Read(p []byte) (int, error) {
 	return bytesRead, nil
 }
 
-// ReadByte implements io.ByteReader
-func (s *stream) ReadByte() (byte, error) {
-	p := make([]byte, 1)
-	_, err := io.ReadFull(s, p)
-	return p[0], err
-}
-
 func (s *stream) Write(p []byte) (int, error) {
 	s.mutex.Lock()
 	defer s.mutex.Unlock()
diff --git a/stream_test.go b/stream_test.go
index 40e9ac50c..d53ecb79d 100644
--- a/stream_test.go
+++ b/stream_test.go
@@ -150,27 +150,6 @@ var _ = Describe("Stream", func() {
 			Expect(b).To(Equal([]byte{0xBE, 0xEF}))
 		})
 
-		It("reads single bytes", func() {
-			frame := frames.StreamFrame{
-				Offset: 0,
-				Data:   []byte{0xDE, 0xAD, 0xBE, 0xEF},
-			}
-			err := str.AddStreamFrame(&frame)
-			Expect(err).ToNot(HaveOccurred())
-			b, err := str.ReadByte()
-			Expect(err).ToNot(HaveOccurred())
-			Expect(b).To(Equal(byte(0xDE)))
-			b, err = str.ReadByte()
-			Expect(err).ToNot(HaveOccurred())
-			Expect(b).To(Equal(byte(0xAD)))
-			b, err = str.ReadByte()
-			Expect(err).ToNot(HaveOccurred())
-			Expect(b).To(Equal(byte(0xBE)))
-			b, err = str.ReadByte()
-			Expect(err).ToNot(HaveOccurred())
-			Expect(b).To(Equal(byte(0xEF)))
-		})
-
 		It("reads all data available", func() {
 			frame1 := frames.StreamFrame{
 				Offset: 0,
diff --git a/utils/utils.go b/utils/utils.go
index 321b80850..68374b5cb 100644
--- a/utils/utils.go
+++ b/utils/utils.go
@@ -7,16 +7,9 @@ import (
 	"github.com/lucas-clemente/quic-go/protocol"
 )
 
-// ReadStream is the read part of a QUIC stream
-type ReadStream interface {
-	io.Reader
-	io.ByteReader
-}
-
 // Stream is the interface for QUIC streams
 type Stream interface {
 	io.Reader
-	io.ByteReader
 	io.Writer
 	io.Closer
 	StreamID() protocol.StreamID