diff --git a/internal/handshake/tls_extension_handler.go b/internal/handshake/tls_extension_handler.go
index ec6431bda..6105fe401 100644
--- a/internal/handshake/tls_extension_handler.go
+++ b/internal/handshake/tls_extension_handler.go
@@ -24,7 +24,7 @@ var _ tlsExtensionHandler = &extensionHandler{}
 // newExtensionHandler creates a new extension handler
 func newExtensionHandler(params []byte, pers protocol.Perspective, v protocol.VersionNumber) tlsExtensionHandler {
 	et := uint16(quicTLSExtensionType)
-	if v != protocol.Version1 {
+	if v == protocol.VersionDraft29 {
 		et = quicTLSExtensionTypeOldDrafts
 	}
 	return &extensionHandler{