diff --git a/init.d/openwrt/custom-desync-keepalive b/init.d/openwrt/custom-desync-keepalive
index 3c5c3141..1cb61f0e 100644
--- a/init.d/openwrt/custom-desync-keepalive
+++ b/init.d/openwrt/custom-desync-keepalive
@@ -1,6 +1,13 @@
-# this script contain your special code to launch daemons and configure firewall
-# use helpers from "functions" file and "zapret" init script
-# in case of upgrade keep this file only, do not modify others
+# some DPIs monitor all requests in http keep-alive session
+# so processing of every outgoing packet is necessary
+# for https its enough to act on client hello packet. ignore others and save CPU time
+
+# copy this file to custom
+# check config :
+#  MODE=custom
+#  NFQWS_OPT_DESYNC=your choice of nfqws desync options
+#  GETLIST=your choise of script in ipset/get_*.sh, or comment if list downloading is not needed
+# restart zapret
 
 zapret_custom_daemons()
 {
diff --git a/init.d/sysv/custom-desync-keepalive b/init.d/sysv/custom-desync-keepalive
index 258abfa4..02e3a922 100644
--- a/init.d/sysv/custom-desync-keepalive
+++ b/init.d/sysv/custom-desync-keepalive
@@ -1,6 +1,13 @@
-# this script contain your special code to launch daemons and configure firewall
-# use helpers from "functions" file and "zapret" init script
-# in case of upgrade keep this file only, do not modify others
+# some DPIs monitor all requests in http keep-alive session
+# so processing of every outgoing packet is necessary
+# for https its enough to act on client hello packet. ignore others and save CPU time
+
+# copy this file to custom
+# check config :
+#  MODE=custom
+#  NFQWS_OPT_DESYNC=your choice of nfqws desync options
+#  GETLIST=your choise of script in ipset/get_*.sh, or comment if list downloading is not needed
+# restart zapret
 
 zapret_custom_daemons()
 {