diff --git a/target/linux/ramips/files/drivers/net/ethernet/ramips/ramips_esw.c b/target/linux/ramips/files/drivers/net/ethernet/ramips/ramips_esw.c
index 309efdeb78..f01baa1709 100644
--- a/target/linux/ramips/files/drivers/net/ethernet/ramips/ramips_esw.c
+++ b/target/linux/ramips/files/drivers/net/ethernet/ramips/ramips_esw.c
@@ -534,7 +534,7 @@ rt305x_esw_apply_config(struct switch_dev *dev)
 			untag     |= esw->ports[i].untag     << i;
 			pvid       = esw->ports[i].pvid;
 		} else {
-			int x = esw->alt_vlan_disable ? 1 : 0;
+			int x = esw->alt_vlan_disable ? 0 : 1;
 			doubletag |= x << i;
 			en_vlan   |= x << i;
 			untag     |= x << i;