diff --git a/port/moonlight/mnrs_network_driver.c b/port/moonlight/mnrs_network_driver.c
index 498b308..d151011 100644
--- a/port/moonlight/mnrs_network_driver.c
+++ b/port/moonlight/mnrs_network_driver.c
@@ -70,13 +70,13 @@ const ULONG mnrs_mac_address_msw = 0x0200;
 const ULONG mnrs_mac_address_lsw = 0x00334450;
 
 /* Define driver prototypes.  */
-VOID _nx_mnrs_network_driver(NX_IP_DRIVER* driver_req_ptr);
-void _nx_mnrs_network_driver_output(NX_PACKET* packet_ptr, UINT interface_instance_id);
-void _nx_mnrs_network_driver_receive(NX_IP* ip_ptr, NX_PACKET* packet_ptr, UINT interface_instance_id);
-UINT _nx_mnrs_eth_send_packet(NX_PACKET* packet_ptr, volatile ethmac_t* ethmac);
-VOID _nx_mnrs_eth_recv_packet(UINT i);
-VOID _nx_mnrs_eth_recv_packet_eth0(VOID);
-VOID _nx_mnrs_eth_recv_packet_eth1(VOID);
+VOID nx_mnrs_network_driver(NX_IP_DRIVER* driver_req_ptr);
+static void _nx_mnrs_network_driver_output(NX_PACKET* packet_ptr, UINT interface_instance_id);
+static void _nx_mnrs_network_driver_receive(NX_IP* ip_ptr, NX_PACKET* packet_ptr, UINT interface_instance_id);
+static UINT _nx_mnrs_eth_send_packet(NX_PACKET* packet_ptr, volatile ethmac_t* ethmac);
+static VOID _nx_mnrs_eth_recv_packet(UINT i);
+static VOID _nx_mnrs_eth_recv_packet_eth0(VOID);
+static VOID _nx_mnrs_eth_recv_packet_eth1(VOID);
 
 #define NX_MNRS_DRIVER_MAX_MCAST_ADDRESSES 3
 typedef struct MAC_ADDRESS_STRUCT
@@ -164,7 +164,7 @@ static _nx_mnrs_network_driver_instance_type nx_mnrs_driver[NX_MAX_PHYSICAL_INTE
 /*                                            resulting in version 6.4.0  */
 /*                                                                        */
 /**************************************************************************/
-VOID _nx_mnrs_network_driver(NX_IP_DRIVER* driver_req_ptr)
+VOID nx_mnrs_network_driver(NX_IP_DRIVER* driver_req_ptr)
 {
     UINT i = 0;
     NX_IP* ip_ptr;
diff --git a/src/tcp_demo/main.c b/src/tcp_demo/main.c
index 29a1506..e8ce30a 100644
--- a/src/tcp_demo/main.c
+++ b/src/tcp_demo/main.c
@@ -36,9 +36,8 @@ void thread_1_entry(ULONG thread_input);
 void thread_1_connect_received(NX_TCP_SOCKET* server_socket, UINT port);
 void thread_1_disconnect_received(NX_TCP_SOCKET* server_socket);
 
-void _nx_ram_network_driver(struct NX_IP_DRIVER_STRUCT* driver_req);
-void _nx_mnrs_network_driver(struct NX_IP_DRIVER_STRUCT* driver_req);
-#define NETWORK_DRIVER _nx_mnrs_network_driver
+void nx_mnrs_network_driver(struct NX_IP_DRIVER_STRUCT* driver_req);
+#define NETWORK_DRIVER nx_mnrs_network_driver
 // alternative the ram driver can be used
 // #define NETWORK_DRIVER _nx_ram_network_driver