diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
index 965f13944c76ba5cd5a190b77b2e0ab8af36b05d..a29a6a618110e0a2f63b3f3edaa14cc1881e43b1 100644
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -253,8 +253,15 @@ static int ocelot_vlan_vid_add(struct net_device *dev, u16 vid, bool pvid,
 		port->pvid = vid;
 
 	/* Untagged egress vlan clasification */
-	if (untagged)
+	if (untagged && port->vid != vid) {
+		if (port->vid) {
+			dev_err(ocelot->dev,
+				"Port already has a native VLAN: %d\n",
+				port->vid);
+			return -EBUSY;
+		}
 		port->vid = vid;
+	}
 
 	ocelot_vlan_port_apply(ocelot, port);