diff --git a/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua b/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
index ce5edb130..00c421517 100644
--- a/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
+++ b/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
@@ -1233,16 +1233,6 @@ function settings_add()
 	-- Enable/disable SIP ALG
 	local sipalg = luci.http.formvalue("sipalg") or "0"
 	ucic:set("openmptcprouter","settings","sipalg",sipalg)
-	ucic:foreach("firewall", "zone", function (section)
-		ucic:set("firewall",section[".name"],"auto_helper",sipalg)
-	end)
-	if sipalg == "1" then
-		luci.sys.call("modprobe -q nf_conntrack_sip >/dev/null 2>/dev/null")
-		luci.sys.call("modprobe -q nf_nat_sip >/dev/null 2>/dev/null")
-	else
-		luci.sys.call("rmmod nf_nat_sip >/dev/null 2>/dev/null")
-		luci.sys.call("rmmod nf_conntrack_sip >/dev/null 2>/dev/null")
-	end
 
 	ucic:save("openmptcprouter")
 	ucic:commit("openmptcprouter")
diff --git a/luci-app-openmptcprouter/root/etc/init.d/openmptcprouter b/luci-app-openmptcprouter/root/etc/init.d/openmptcprouter
index 8c75d0366..6a667e263 100755
--- a/luci-app-openmptcprouter/root/etc/init.d/openmptcprouter
+++ b/luci-app-openmptcprouter/root/etc/init.d/openmptcprouter
@@ -197,8 +197,8 @@ start_service() {
 			set firewall.zone_vpn.auto_helper='1'
 			commit firewall
 		EOF
-		modprobe nf_conntrack_sip 2>&1 >/dev/null
-		modprobe nf_nat_sip 2>&1 >/dev/null
+		modprobe -q nf_conntrack_sip 2>&1 >/dev/null
+		modprobe -q nf_nat_sip 2>&1 >/dev/null
 	fi
 
 	if [ "$(uci -q get rpcd.@rpcd[0].socket)" != "/var/run/ubus/ubus.sock" ]; then
diff --git a/openmptcprouter/files/etc/uci-defaults/1980-omr-firewall b/openmptcprouter/files/etc/uci-defaults/1980-omr-firewall
index c736e2b87..afde68d82 100755
--- a/openmptcprouter/files/etc/uci-defaults/1980-omr-firewall
+++ b/openmptcprouter/files/etc/uci-defaults/1980-omr-firewall
@@ -245,6 +245,7 @@ EOF
 if [ "$(uci -q get openmptcprouter.settings.sipalg)" = "" ]; then
 	uci -q batch <<-EOF >/dev/null
 		set openmptcprouter.settings.sipalg='1'
+		commit openmptcprouter
 	EOF
 fi
 if [ "$(uci -q get openmptcprouter.settings.sipalg)" = "0" ]; then