diff --git a/platform/windows/hci_transport_h2_winusb.c b/platform/windows/hci_transport_h2_winusb.c
index 69a97ace5..1cf6c7834 100644
--- a/platform/windows/hci_transport_h2_winusb.c
+++ b/platform/windows/hci_transport_h2_winusb.c
@@ -1379,7 +1379,11 @@ static const hci_transport_t hci_transport_usb = {
     /* int    (*send_packet)(...); */                               &usb_send_packet,
     /* int    (*set_baudrate)(uint32_t baudrate); */                NULL,
     /* void   (*reset_link)(void); */                               NULL,
+#ifdef ENABLE_SCO_OVER_HCI
     /* void   (*set_sco_config)(uint16_t voice_setting, int num_connections); */ usb_set_sco_config, 
+#else
+    /* void   (*set_sco_config)(uint16_t voice_setting, int num_connections); */ NULL, 
+#endif    
 };
 
 const hci_transport_t * hci_transport_usb_instance(void) {