diff --git a/sys/dev/netif/mii_layer/mii_physubr.c b/sys/dev/netif/mii_layer/mii_physubr.c
--- a/sys/dev/netif/mii_layer/mii_physubr.c
+++ b/sys/dev/netif/mii_layer/mii_physubr.c
@@ -376,7 +376,7 @@
 			break;
 
 		default:
-			panic("mii_phy_setmedia: MASTER on wrong media");
+			break;
 		}
 	}