diff --git a/_gnutls.h b/_gnutls.h
index bea1972..acfef48 100644
--- a/_gnutls.h
+++ b/_gnutls.h
@@ -18,8 +18,8 @@ extern int OnDataReadCallback(void *, char *, int);
 extern int OnDataWriteCallback(void *, char *, int);
 extern int OnDataTimeoutRead(void *, int);
 
-struct session *init_client_session();
-struct session *init_server_session();
+struct session *init_gnutls_client_session();
+struct session *init_gnutls_server_session();
 
 int pull_timeout_function(gnutls_transport_ptr_t ptr, unsigned int ms);
 ssize_t pull_function(gnutls_transport_ptr_t ptr, void *data, size_t len);
diff --git a/gnutls.c b/gnutls.c
index d8f4fe4..6dffda3 100644
--- a/gnutls.c
+++ b/gnutls.c
@@ -12,7 +12,7 @@ int cert_select_callback(gnutls_session_t sess, const gnutls_datum_t *req_ca_dn,
 						 int pk_algos_length, gnutls_pcert_st **pcert,
 						 unsigned int *pcert_length, gnutls_privkey_t *pkey);
 
-struct session *init_client_session()
+struct session *init_gnutls_client_session()
 {
 	struct session *sess = malloc(sizeof(struct session));
 	memset(sess, sizeof(struct session), 0);
@@ -23,7 +23,7 @@ struct session *init_client_session()
 	return sess;
 }
 
-struct session *init_server_session()
+struct session *init_gnutls_server_session()
 {
 	struct session *sess = malloc(sizeof(struct session));
 	memset(sess, sizeof(struct session), 0);
@@ -48,7 +48,7 @@ int _init_session(struct session *sess)
 
 void session_destroy(struct session *sess)
 {
-	gnutls_bye(sess->session, GNUTLS_SHUT_RDWR);
+	gnutls_bye(sess->session, GNUTLS_SHUT_WR);
 	gnutls_deinit(sess->session);
 	gnutls_certificate_free_credentials(sess->xcred);
 	free(sess);
diff --git a/tls.go b/tls.go
index 627a212..037147f 100644
--- a/tls.go
+++ b/tls.go
@@ -101,7 +101,7 @@ func Listen(network, addr string, cfg *Config) (net.Listener, error) {
 
 // NewServerConn create a server TLS Conn on c
 func NewServerConn(c net.Conn, cfg *Config) (*Conn, error) {
-	var sess = C.init_server_session()
+	var sess = C.init_gnutls_server_session()
 	conn := &Conn{c: c, sess: sess, cfg: cfg}
 	n := C.size_t(uintptr(unsafe.Pointer(conn)))
 	//log.Println("conn addr ", int(n))
@@ -118,7 +118,7 @@ func NewServerConn(c net.Conn, cfg *Config) (*Conn, error) {
 
 // NewClientConn create a client TLS Conn on c
 func NewClientConn(c net.Conn, cfg *Config) (*Conn, error) {
-	var sess = C.init_client_session()
+	var sess = C.init_gnutls_client_session()
 	conn := &Conn{c: c, sess: sess, cfg: cfg}
 	n := C.size_t(uintptr(unsafe.Pointer(conn)))
 	//log.Println("conn addr ", int(n))