diff --git a/luci-app-omr-bypass/root/etc/init.d/omr-bypass b/luci-app-omr-bypass/root/etc/init.d/omr-bypass
index 371b29e00..2c363e157 100755
--- a/luci-app-omr-bypass/root/etc/init.d/omr-bypass
+++ b/luci-app-omr-bypass/root/etc/init.d/omr-bypass
@@ -124,23 +124,23 @@ _bypass_proto() {
 	if [ "$intf" = "all" ]; then
 		iptables-restore --wait=60  --noflush <<-EOF
 		*mangle
-		-A omr-bypass-dpi -m ndpi --$proto -j MARK --set-mark 0x539
+		-A omr-bypass-dpi -m ndpi --proto $proto -j MARK --set-mark 0x539
 		COMMIT
 		EOF
 		ip6tables-restore --wait=60  --noflush <<-EOF
 		*mangle
-		-A omr-bypass-dpi -m ndpi --$proto -j MARK --set-mark 0x6539
+		-A omr-bypass-dpi -m ndpi --proto $proto -j MARK --set-mark 0x6539
 		COMMIT
 		EOF
 	else
 		iptables-restore --wait=60  --noflush <<-EOF
 		*mangle
-		-A omr-bypass-dpi -m ndpi --$proto -j MARK --set-mark 0x539$intfid
+		-A omr-bypass-dpi -m ndpi --proto $proto -j MARK --set-mark 0x539$intfid
 		COMMIT
 		EOF
 		ip6tables-restore --wait=60  --noflush <<-EOF
 		*mangle
-		-A omr-bypass-dpi -m ndpi --$proto -j MARK --set-mark 0x6539$intfid
+		-A omr-bypass-dpi -m ndpi --proto $proto -j MARK --set-mark 0x6539$intfid
 		COMMIT
 		EOF
 	fi