diff --git a/public_header.go b/public_header.go
index 3907773e..1da588e0 100644
--- a/public_header.go
+++ b/public_header.go
@@ -30,7 +30,7 @@ type PublicHeader struct {
 
 // WritePublicHeader writes a public header
 func (h *PublicHeader) WritePublicHeader(b *bytes.Buffer) error {
-	publicFlagByte := uint8(0x30)
+	publicFlagByte := uint8(0x34)
 	if h.VersionFlag && h.ResetFlag {
 		return errResetAndVersionFlagSet
 	}
diff --git a/public_header_test.go b/public_header_test.go
index 05fe7f23..86d7b150 100644
--- a/public_header_test.go
+++ b/public_header_test.go
@@ -86,7 +86,7 @@ var _ = Describe("Public Header", func() {
 				PacketNumber: 2,
 			}
 			publicHeader.WritePublicHeader(b)
-			Expect(b.Bytes()).To(Equal([]byte{0x38, 0xf6, 0x19, 0x86, 0x66, 0x9b, 0x9f, 0xfa, 0x4c, 2, 0, 0, 0, 0, 0}))
+			Expect(b.Bytes()).To(Equal([]byte{0x3c, 0xf6, 0x19, 0x86, 0x66, 0x9b, 0x9f, 0xfa, 0x4c, 2, 0, 0, 0, 0, 0}))
 		})
 
 		It("sets the Version Flag", func() {
diff --git a/server_test.go b/server_test.go
index 5b54379b..5ebd521a 100644
--- a/server_test.go
+++ b/server_test.go
@@ -47,7 +47,7 @@ var _ = Describe("Server", func() {
 
 		It("composes version negotiation packets", func() {
 			expected := append(
-				[]byte{0x39, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0},
+				[]byte{0x3d, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0},
 				protocol.SupportedVersionsAsTags...,
 			)
 			Expect(composeVersionNegotiation(1)).To(Equal(expected))