diff --git a/kobo/koreader.sh b/kobo/koreader.sh
index 056169fb7..a068d65f1 100755
--- a/kobo/koreader.sh
+++ b/kobo/koreader.sh
@@ -10,10 +10,6 @@ export TESSDATA_PREFIX="data"
 # export dict directory
 export STARDICT_DATA_DIR="data/dict"
 
-# accept input ports for zsync plugin
-iptables -A INPUT -i wlan0 -p udp --dport 5670 -j ACCEPT
-iptables -A INPUT -i wlan0 -p tcp --dport 49152:49162 -j ACCEPT
-
 # exit from nickel
 killall nickel
 killall hindenburg
@@ -21,9 +17,5 @@ killall hindenburg
 # finally call the launcher
 ./reader.lua /mnt/onboard 2> crash.log
 
-# restore firewall rules
-iptables -D INPUT -i wlan0 -p udp --dport 5670 -j ACCEPT
-iptables -D INPUT -i wlan0 -p tcp --dport 49152:49162 -j ACCEPT
-
 # back to nickel
 ./nickel.sh