diff --git a/README.md b/README.md
index d75892dc..41abaaa7 100644
--- a/README.md
+++ b/README.md
@@ -166,6 +166,7 @@ Permissions
 
 * ACCESS_NETWORK_STATE: to check if the device is connected to the internet through Wi-Fi
 * READ_PHONE_STATE: to detect mobile network changes, see [here](http://forum.xda-developers.com/showpost.php?p=64107371&postcount=489) for more details
+* ACCESS_WIFI_STATE: to detect Wi-Fi network changes
 * RECEIVE_BOOT_COMPLETED: to start the firewall when booting the device
 * WAKE_LOCK: to reliably reload rules in the background on connectivity changes
 * com.android.vending.BILLING: to accept donations via in-app billing