diff --git a/drivers/net/mvneta.c b/drivers/net/mvneta.c
index 0fbfad1..2493347 100644
--- a/drivers/net/mvneta.c
+++ b/drivers/net/mvneta.c
@@ -815,7 +815,7 @@
 	mvreg_write(pp, MVNETA_SDMA_CONFIG, val);
 
 	/* Enable PHY polling in hardware if not in fixed-link mode */
-	if (!CONFIG_IS_ENABLED(PHY_FIXED) ||
+	if (!IS_ENABLED(CONFIG_PHY_FIXED) ||
 	    pp->phydev->phy_id != PHY_FIXED_ID) {
 		mvreg_write(pp, MVNETA_PHY_ADDR, pp->phydev->addr);
 
@@ -1176,7 +1176,7 @@
 		 * be added). Also, why is ADVERT_FC enabled if we don't enable
 		 * inband AN at all?
 		 */
-		if (CONFIG_IS_ENABLED(PHY_FIXED) &&
+		if (IS_ENABLED(CONFIG_PHY_FIXED) &&
 		    pp->phydev->phy_id == PHY_FIXED_ID)
 			val = MVNETA_GMAC_IB_BYPASS_AN_EN |
 			      MVNETA_GMAC_SET_FC_EN |
diff --git a/net/mdio-uclass.c b/net/mdio-uclass.c
index d80037d..e758cc6 100644
--- a/net/mdio-uclass.c
+++ b/net/mdio-uclass.c
@@ -175,7 +175,7 @@
 	struct phy_device *phy;
 	ofnode phynode;
 
-	if (CONFIG_IS_ENABLED(PHY_FIXED) &&
+	if (IS_ENABLED(CONFIG_PHY_FIXED) &&
 	    ofnode_phy_is_fixed_link(dev_ofnode(ethdev), &phynode)) {
 		phy = phy_connect(NULL, 0, ethdev, interface);
 		goto out;