diff --git a/drivers/net/fm/ls1046.c b/drivers/net/fm/ls1046.c
index 49b540b..09df0aa 100644
--- a/drivers/net/fm/ls1046.c
+++ b/drivers/net/fm/ls1046.c
@@ -99,7 +99,7 @@
 	case FM1_DTSEC10:
 		if (is_serdes_configured(SGMII_2500_FM1_DTSEC5 +
 					 port - FM1_DTSEC5))
-			return PHY_INTERFACE_MODE_SGMII_2500;
+			return PHY_INTERFACE_MODE_2500BASEX;
 		break;
 	default:
 		break;