diff --git a/consensus/ethash/consensus.go b/consensus/ethash/consensus.go
index 4c0c42c1a7..a9e4afa4c7 100644
--- a/consensus/ethash/consensus.go
+++ b/consensus/ethash/consensus.go
@@ -359,45 +359,45 @@ func calcDifficultyEGEM(time uint64, parent *types.Header) *big.Int {
 	bigParentTime.Set(parent.Time)
 
 	if (parent.Number.Cmp(egemRewardSwitchBlockEra2) == 1) {
-		if bigTime.Sub(bigTime, bigParentTime).Cmp(params.DurationLimit) < 0 {
-			diff.Add(parent.Difficulty, adjust0)
-		} else {
-			diff.Sub(parent.Difficulty, adjust0)
-		}
-		if diff.Cmp(params.MinimumDifficulty) < 0 {
-			diff.Set(params.MinimumDifficulty)
-		}
-		return diff
+			if bigTime.Sub(bigTime, bigParentTime).Cmp(params.DurationLimit) < 0 {
+				diff.Add(parent.Difficulty, adjust0)
+			} else {
+				diff.Sub(parent.Difficulty, adjust0)
+			}
+			if diff.Cmp(params.MinimumDifficulty) < 0 {
+				diff.Set(params.MinimumDifficulty)
+			}
+			return diff
 	} else if (parent.Number.Cmp(egemRewardSwitchBlockEra1) == 1) {
-		if bigTime.Sub(bigTime, bigParentTime).Cmp(params.DurationLimit) < 0 {
-			diff.Add(parent.Difficulty, adjust1)
-		} else {
-			diff.Sub(parent.Difficulty, adjust1)
-		}
-		if diff.Cmp(params.MinimumDifficulty) < 0 {
-			diff.Set(params.MinimumDifficulty)
-		}
-		return diff
+			if bigTime.Sub(bigTime, bigParentTime).Cmp(params.DurationLimit) < 0 {
+				diff.Add(parent.Difficulty, adjust1)
+			} else {
+				diff.Sub(parent.Difficulty, adjust1)
+			}
+			if diff.Cmp(params.MinimumDifficulty) < 0 {
+				diff.Set(params.MinimumDifficulty)
+			}
+			return diff
 	} else if (parent.Number.Cmp(egemRewardSwitchBlockEra0) == 1) {
-		if bigTime.Sub(bigTime, bigParentTime).Cmp(params.DurationLimit) < 0 {
-			diff.Add(parent.Difficulty, adjust2)
-		} else {
-			diff.Sub(parent.Difficulty, adjust2)
-		}
-		if diff.Cmp(params.MinimumDifficulty) < 0 {
-			diff.Set(params.MinimumDifficulty)
-		}
-		return diff
+			if bigTime.Sub(bigTime, bigParentTime).Cmp(params.DurationLimit) < 0 {
+				diff.Add(parent.Difficulty, adjust2)
+			} else {
+				diff.Sub(parent.Difficulty, adjust2)
+			}
+			if diff.Cmp(params.MinimumDifficulty) < 0 {
+				diff.Set(params.MinimumDifficulty)
+			}
+			return diff
 	} else {
-		if bigTime.Sub(bigTime, bigParentTime).Cmp(params.DurationLimit) < 0 {
-			diff.Add(parent.Difficulty, adjust3)
-		} else {
-			diff.Sub(parent.Difficulty, adjust3)
-		}
-		if diff.Cmp(params.MinimumDifficulty) < 0 {
-			diff.Set(params.MinimumDifficulty)
-		}
-		return diff
+			if bigTime.Sub(bigTime, bigParentTime).Cmp(params.DurationLimit) < 0 {
+				diff.Add(parent.Difficulty, adjust3)
+			} else {
+				diff.Sub(parent.Difficulty, adjust3)
+			}
+			if diff.Cmp(params.MinimumDifficulty) < 0 {
+				diff.Set(params.MinimumDifficulty)
+			}
+			return diff
 	}
 }
 
diff --git a/params/config.go b/params/config.go
index b7471dad5d..029ef46ce9 100644
--- a/params/config.go
+++ b/params/config.go
@@ -154,7 +154,7 @@ func (c *ChainConfig) String() string {
 	default:
 		engine = "unknown"
 	}
-	return fmt.Sprintf("{ChainID: %v Homestead: %v DAO: %v DAOSupport: %v EIP150: %v EIP155: %v EIP158: %v Byzantium: %v Constantinople: %v Engine: %v}",
+	return fmt.Sprintf("{ChainID: %v EIP150: %v EIP155: %v EIP158: %v }",
 		c.ChainId,
 		c.HomesteadBlock,
 		c.DAOForkBlock,