diff --git a/AddressBook.h b/AddressBook.h
index 1d22018e..dc4ac54c 100644
--- a/AddressBook.h
+++ b/AddressBook.h
@@ -20,7 +20,7 @@ namespace client
 	const char DEFAULT_SUBSCRIPTION_ADDRESS[] = "http://udhdrtrcetjm5sxzskjyr5ztpeszydbh4dpl3pl4utgqqw2v4jna.b32.i2p/hosts.txt";
 	const int INITIAL_SUBSCRIPTION_UPDATE_TIMEOUT = 3; // in minutes	
 	const int INITIAL_SUBSCRIPTION_RETRY_TIMEOUT = 1; // in minutes			
-	const int CONTINIOUS_SUBSCRIPTION_UPDATE_TIMEOUT = 240; // in minutes			
+	const int CONTINIOUS_SUBSCRIPTION_UPDATE_TIMEOUT = 720; // in minutes (12 hours)			
 	const int CONTINIOUS_SUBSCRIPTION_RETRY_TIMEOUT = 5; // in minutes	
 	const int SUBSCRIPTION_REQUEST_TIMEOUT = 60; //in second