diff --git a/shadowsocks-rust/files/shadowsocks-rust.init-nft b/shadowsocks-rust/files/shadowsocks-rust.init-nft
index 8b51253b9..f83311968 100755
--- a/shadowsocks-rust/files/shadowsocks-rust.init-nft
+++ b/shadowsocks-rust/files/shadowsocks-rust.init-nft
@@ -166,6 +166,7 @@ ss_rules_nft_gen() {
 		max_ss_redir_ports="0"
 		config_load shadowsocks-rust
 		config_foreach ss_redir_ports ss_redir $cfgrulesserver
+		[ "$max_ss_redir_ports" = "0" ] && return 2
 		if [ "$min_ss_redir_ports" != "$max_ss_redir_ports" ]; then
 			all_ss_redir_ports=$min_ss_redir_ports-$max_ss_redir_ports
 		else