diff --git a/server.go b/server.go
index b272112c3..ef184dbd4 100644
--- a/server.go
+++ b/server.go
@@ -189,7 +189,7 @@ func composeVersionNegotiation(connectionID protocol.ConnectionID) []byte {
 		VersionFlag:  true,
 	}
 	// TODO: Update version number
-	err := responsePublicHeader.WritePublicHeader(fullReply, protocol.Version32)
+	err := responsePublicHeader.WritePublicHeader(fullReply, protocol.Version33)
 	if err != nil {
 		utils.Errorf("error composing version negotiation packet: %s", err.Error())
 	}