diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index 7dbf02f45913..1ea338786479 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -3971,6 +3971,7 @@ static int mlxsw_sp_nexthop4_init(struct mlxsw_sp *mlxsw_sp,
 
 	if (!dev)
 		return 0;
+	nh->ifindex = dev->ifindex;
 
 	rcu_read_lock();
 	in_dev = __in_dev_get_rcu(dev);