diff --git a/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat.c b/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat.c
index e43905209b..f677d2c693 100644
--- a/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat.c
+++ b/target/linux/mediatek/files-5.4/drivers/net/ethernet/mediatek/mtk_hnat/hnat.c
@@ -709,10 +709,7 @@ static int hnat_probe(struct platform_device *pdev)
 	dev_info(&pdev->dev, "lan = %s\n", hnat_priv->lan);
 
 	err = of_property_read_string(np, "mtketh-ppd", &name);
-	if (err < 0)
-		strncpy(hnat_priv->ppd, "wan", IFNAMSIZ);
-	else
-		strncpy(hnat_priv->ppd, (char *)name, IFNAMSIZ - 1);
+	strncpy(hnat_priv->ppd, "eth0", IFNAMSIZ);
 	dev_info(&pdev->dev, "ppd = %s\n", hnat_priv->ppd);
 
 	/*get total gmac num in hnat*/