diff --git a/shadowsocks-libev/files/shadowsocks-libev.init b/shadowsocks-libev/files/shadowsocks-libev.init
index 48475037b..0c2596b3f 100644
--- a/shadowsocks-libev/files/shadowsocks-libev.init
+++ b/shadowsocks-libev/files/shadowsocks-libev.init
@@ -79,53 +79,65 @@ ss_mkjson_common_conf() {
 ss_mkjson_ss_local_conf() {
 	ss_mkjson_server_conf
 	[ "$obfs" = 0 ] && obfs=false || obfs=true
-	obfs_options="--obfs $obfs_type"
-	[ -z "$obfs_host" ] || obfs_options="$obfs_options --obfs-host $obfs_host"
-	[ -z "$obfs_uri" ] || obfs_options="$obfs_options --obfs-uri $obfs_uri"
-	[ "$fast_open" = 1 ] && obfs_options="$obfs_options --fast-open"
-	[ "$mptcp" = 1 ] && obfs_options="$obfs_options --mptcp"
-	cat <<-EOF
-		${obfs:+${q}plugin${q}: ${q}/usr/bin/obfs-local $obfs_options${q},}
-	EOF
+	if $obfs; then
+		obfs_options="--obfs $obfs_type"
+		[ -z "$obfs_host" ] || obfs_options="$obfs_options --obfs-host $obfs_host"
+		[ -z "$obfs_uri" ] || obfs_options="$obfs_options --obfs-uri $obfs_uri"
+		[ "$fast_open" = 1 ] && obfs_options="$obfs_options --fast-open"
+		[ "$mptcp" = 1 ] && obfs_options="$obfs_options --mptcp"
+		cat <<-EOF
+			${obfs:+${q}plugin${q}: ${q}/usr/bin/obfs-local $obfs_options${q},}
+		EOF
+	fi
 }
 
 ss_mkjson_ss_redir_conf() {
 	ss_mkjson_server_conf || return 1
 	[ "$disable_sni" = 0 ] && disable_sni=false || disable_sni=true
-	[ "$obfs" = 0 ] && obfs=false || obfs=true
-	obfs_options="--obfs $obfs_type"
-	[ -z "$obfs_host" ] || obfs_options="$obfs_options --obfs-host $obfs_host"
-	[ -z "$obfs_uri" ] || obfs_options="$obfs_options --obfs-uri $obfs_uri"
-	[ "$fast_open" = 1 ] && obfs_options="$obfs_options --fast-open"
-	[ "$mptcp" = 1 ] && obfs_options="$obfs_options --mptcp"
 	cat <<-EOF
 		"disable_sni": $disable_sni,
-		${obfs:+${q}plugin${q}: ${q}/usr/bin/obfs-local $obfs_options${q},}
 	EOF
+	[ "$obfs" = 0 ] && obfs=false || obfs=true
+	if $obfs; then
+		obfs_options="--obfs $obfs_type"
+		[ -z "$obfs_host" ] || obfs_options="$obfs_options --obfs-host $obfs_host"
+		[ -z "$obfs_uri" ] || obfs_options="$obfs_options --obfs-uri $obfs_uri"
+		[ "$fast_open" = 1 ] && obfs_options="$obfs_options --fast-open"
+		[ "$mptcp" = 1 ] && obfs_options="$obfs_options --mptcp"
+		cat <<-EOF
+			${obfs:+${q}plugin${q}: ${q}/usr/bin/obfs-local $obfs_options${q},}
+		EOF
+	fi
 }
 
 ss_mkjson_ss_server_conf() {
 	ss_mkjson_server_conf_
 	[ "$obfs" = 0 ] && obfs=false || obfs=true
-	obfs_options="--obfs $obfs_type"
-	[ "$fast_open" = 1 ] && obfs_options="$obfs_options --fast-open"
-	[ "$mptcp" = 1 ] && obfs_options="$obfs_options --mptcp"
-	cat <<-EOF
-		${obfs:+${q}plugin${q}: ${q}/usr/bin/obfs-server $obfs_options${q},}
-	EOF
+	if $obfs; then
+		obfs_options="--obfs $obfs_type"
+		[ "$fast_open" = 1 ] && obfs_options="$obfs_options --fast-open"
+		[ "$mptcp" = 1 ] && obfs_options="$obfs_options --mptcp"
+		cat <<-EOF
+			${obfs:+${q}plugin${q}: ${q}/usr/bin/obfs-server $obfs_options${q},}
+		EOF
+	fi
 }
 
 ss_mkjson_ss_tunnel_conf() {
 	ss_mkjson_server_conf || return 1
 	[ -n "$tunnel_address" ] || return 1
-	[ "$obfs" = 0 ] && obfs=false || obfs=true
-	obfs_options="--obfs $obfs_type"
-	[ -z "$obfs_host" ] || obfs_options="$obfs_options --obfs-host $obfs_host"
-	[ -z "$obfs_uri" ] || obfs_options="$obfs_options --obfs-uri $obfs_uri"
 	cat <<-EOF
 		${tunnel_address:+${q}tunnel_address${q}: ${q}$tunnel_address${q},}
-		${obfs:+${q}plugin${q}: ${q}/usr/bin/obfs-local $obfs_options${q},}
 	EOF
+	[ "$obfs" = 0 ] && obfs=false || obfs=true
+	if $obfs; then
+		obfs_options="--obfs $obfs_type"
+		[ -z "$obfs_host" ] || obfs_options="$obfs_options --obfs-host $obfs_host"
+		[ -z "$obfs_uri" ] || obfs_options="$obfs_options --obfs-uri $obfs_uri"
+		cat <<-EOF
+			${obfs:+${q}plugin${q}: ${q}/usr/bin/obfs-local $obfs_options${q},}
+		EOF
+	fi
 }
 
 ss_xxx() {