diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c
index 41454cb403d0..f8e1f78039e1 100644
--- a/sound/usb/mixer_maps.c
+++ b/sound/usb/mixer_maps.c
@@ -749,6 +749,10 @@ static const struct usbmix_ctl_map usbmix_ctl_maps[] = {
 		.id = USB_ID(0x0db0, 0xa073),
 		.map = msi_mpg_x570s_carbon_max_wifi_alc4080_map,
 	},
+	{	/* MSI MAG B850M MORTAR WIFI */
+		.id = USB_ID(0x0db0, 0xcc78),
+		.map = msi_mpg_x570s_carbon_max_wifi_alc4080_map,
+	},
 	{	/* MSI TRX40 */
 		.id = USB_ID(0x0db0, 0x543d),
 		.map = trx40_mobo_map,