diff --git a/chain/store/weight.go b/chain/store/weight.go
index 999166f89..53c202845 100644
--- a/chain/store/weight.go
+++ b/chain/store/weight.go
@@ -38,16 +38,16 @@ func (cs *ChainStore) Weight(ctx context.Context, ts *types.TipSet) (types.BigIn
 	if tpow.GreaterThan(zero) {
 		log2P = int64(tpow.BitLen() - 1)
 	} else {
-		// Not really expect to be here ... 
+		// Not really expect to be here ...
 		return types.EmptyInt, xerrors.Errorf("All power in the net is gone. You network might be disconnected, or the net is dead!")
 	}
 
-	out.Add(out, big.NewInt(log2P << 8))
+	out.Add(out, big.NewInt(log2P<<8))
 
 	// (wFunction(totalPowerAtTipset(ts)) * len(ts.blocks) * wRatio_num * 2^8) / (e * wRatio_den)
 
 	eWeight := big.NewInt((log2P * int64(len(ts.Blocks())) * build.WRatioNum) << 8)
-	eWeight.Div(eWeight, big.NewInt(int64(build.BlocksPerEpoch * build.WRatioDen)))
+	eWeight.Div(eWeight, big.NewInt(int64(build.BlocksPerEpoch*build.WRatioDen)))
 	out.Add(out, eWeight)
 
 	return types.BigInt{Int: out}, nil
diff --git a/chain/types/blockheader.go b/chain/types/blockheader.go
index 204208e0f..d65a068d8 100644
--- a/chain/types/blockheader.go
+++ b/chain/types/blockheader.go
@@ -170,7 +170,7 @@ func PowerCmp(eproof ElectionProof, mpow, totpow BigInt) bool {
 		max(h) == 2^256-1
 		which in terms of integer math means:
 		(h(vrfout) + 1) * totalPower <= e * minerPower * 2^256
-		in 2^256 space, it is equivalent to: 
+		in 2^256 space, it is equivalent to:
 		h(vrfout) * totalPower < e * minerPower * 2^256
 	*/
 
@@ -183,7 +183,7 @@ func PowerCmp(eproof ElectionProof, mpow, totpow BigInt) bool {
 	// rhs = minerPower << 256
 	rhs := new(big.Int).Lsh(mpow.Int, 256)
 	rhs = rhs.Mul(rhs, blocksPerEpoch.Int)
-	
+
 	// h(vrfout) * totalPower < e * minerPower * 2^256?
 	return lhs.Cmp(rhs) == -1
 }