diff --git a/iguana/coins/genbtc.json b/iguana/coins/genbtc.json
index f7fc625b7..7fd1e511c 100755
--- a/iguana/coins/genbtc.json
+++ b/iguana/coins/genbtc.json
@@ -1 +1 @@
-{"prefetchlag":5,"poll":1,"active":1,"agent":"iguana","method":"addcoin","newcoin":"BTC","startpend":1,"endpend":1,"services":128,"maxpeers":512,"RELAY":1,"VALIDATE":1,"portp2p":8333}
+{"prefetchlag":-1,"poll":1,"active":1,"agent":"iguana","method":"addcoin","newcoin":"BTC","startpend":1,"endpend":1,"services":128,"maxpeers":512,"RELAY":1,"VALIDATE":1,"portp2p":8333}