diff --git a/consensus/ethash/consensus.go b/consensus/ethash/consensus.go
index 51ae78629b..a2aebee57b 100644
--- a/consensus/ethash/consensus.go
+++ b/consensus/ethash/consensus.go
@@ -540,7 +540,7 @@ func calculateReward(reward int, currentTimestamp uint64) (blockReward *big.Int)
 	rewardMaxDecimal := 7
 	currentReward := float64(reward) * defmath.Pow(10, float64(rewardMaxDecimal))
 	rewardDecreaseTime := int64(3*365*24*60*60)
-	fromTimestamp := int64(1518395555)
+	fromTimestamp := int64(1518538888)
 	timeDiff := int64(currentTimestamp) - fromTimestamp
 
 	if timeDiff >= rewardDecreaseTime {