From 38af7d7d262756ea8e42ee31d5521bd5a35c318b Mon Sep 17 00:00:00 2001
From: Yohan Graterol <yohangraterol92@gmail.com>
Date: Fri, 1 Dec 2017 01:00:31 -0500
Subject: [PATCH] Enable Byzantium if Callisto is not available

---
 consensus/ethash/consensus.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/consensus/ethash/consensus.go b/consensus/ethash/consensus.go
index e28ff896ad..69f1a411b6 100644
--- a/consensus/ethash/consensus.go
+++ b/consensus/ethash/consensus.go
@@ -537,7 +537,7 @@ func AccumulateRewards(config *params.ChainConfig, state *state.StateDB, header
 		blockReward = callistoBlockReward
 	}
 
-	if config.IsByzantium(header.Number) {
+	if config.IsByzantium(header.Number) && !config.IsCallisto(header.Number) {
 		blockReward = ByzantiumBlockReward
 	}