diff --git a/api/api_full.go b/api/api_full.go
index 1a3850cc6..184805698 100644
--- a/api/api_full.go
+++ b/api/api_full.go
@@ -122,10 +122,10 @@ type FullNode interface {
 	// It fails if message fails to execute.
 	GasEstimateGasLimit(context.Context, *types.Message, types.TipSetKey) (int64, error)
 
-	// GasEsitmateGasPremium estimates what gas price should be used for a
+	// GasEstimateGasPremium estimates what gas price should be used for a
 	// message to have high likelihood of inclusion in `nblocksincl` epochs.
 
-	GasEsitmateGasPremium(_ context.Context, nblocksincl uint64,
+	GasEstimateGasPremium(_ context.Context, nblocksincl uint64,
 		sender address.Address, gaslimit int64, tsk types.TipSetKey) (types.BigInt, error)
 
 	// MethodGroup: Sync
diff --git a/api/apistruct/struct.go b/api/apistruct/struct.go
index bc3b72a17..4d0549337 100644
--- a/api/apistruct/struct.go
+++ b/api/apistruct/struct.go
@@ -87,7 +87,7 @@ type FullNodeStruct struct {
 
 		BeaconGetEntry func(ctx context.Context, epoch abi.ChainEpoch) (*types.BeaconEntry, error) `perm:"read"`
 
-		GasEsitmateGasPremium func(context.Context, uint64, address.Address, int64, types.TipSetKey) (types.BigInt, error) `perm:"read"`
+		GasEstimateGasPremium func(context.Context, uint64, address.Address, int64, types.TipSetKey) (types.BigInt, error) `perm:"read"`
 		GasEstimateGasLimit   func(context.Context, *types.Message, types.TipSetKey) (int64, error)                        `perm:"read"`
 		GasEstimateFeeCap     func(context.Context, *types.Message, int64, types.TipSetKey) (types.BigInt, error)          `perm:"read"`
 
@@ -434,9 +434,9 @@ func (c *FullNodeStruct) ClientDealSize(ctx context.Context, root cid.Cid) (api.
 	return c.Internal.ClientDealSize(ctx, root)
 }
 
-func (c *FullNodeStruct) GasEsitmateGasPremium(ctx context.Context, nblocksincl uint64,
+func (c *FullNodeStruct) GasEstimateGasPremium(ctx context.Context, nblocksincl uint64,
 	sender address.Address, gaslimit int64, tsk types.TipSetKey) (types.BigInt, error) {
-	return c.Internal.GasEsitmateGasPremium(ctx, nblocksincl, sender, gaslimit, tsk)
+	return c.Internal.GasEstimateGasPremium(ctx, nblocksincl, sender, gaslimit, tsk)
 }
 func (c *FullNodeStruct) GasEstimateFeeCap(ctx context.Context, msg *types.Message,
 	maxqueueblks int64, tsk types.TipSetKey) (types.BigInt, error) {
diff --git a/cli/chain.go b/cli/chain.go
index 28a55c313..7760da249 100644
--- a/cli/chain.go
+++ b/cli/chain.go
@@ -1031,9 +1031,9 @@ var chainGasPriceCmd = &cli.Command{
 
 		nb := []int{1, 2, 3, 5, 10, 20, 50, 100, 300}
 		for _, nblocks := range nb {
-			addr := builtin.SystemActorAddr // TODO: make real when used in GasEsitmateGasPremium
+			addr := builtin.SystemActorAddr // TODO: make real when used in GasEstimateGasPremium
 
-			est, err := api.GasEsitmateGasPremium(ctx, uint64(nblocks), addr, 10000, types.EmptyTSK)
+			est, err := api.GasEstimateGasPremium(ctx, uint64(nblocks), addr, 10000, types.EmptyTSK)
 			if err != nil {
 				return err
 			}
diff --git a/cmd/lotus-pcr/main.go b/cmd/lotus-pcr/main.go
index aed67408a..43b0b2ffc 100644
--- a/cmd/lotus-pcr/main.go
+++ b/cmd/lotus-pcr/main.go
@@ -205,7 +205,7 @@ type processTipSetApi interface {
 	StateMinerInitialPledgeCollateral(ctx context.Context, addr address.Address, precommitInfo miner.SectorPreCommitInfo, tsk types.TipSetKey) (types.BigInt, error)
 	StateGetActor(ctx context.Context, actor address.Address, tsk types.TipSetKey) (*types.Actor, error)
 	MpoolPushMessage(ctx context.Context, msg *types.Message) (*types.SignedMessage, error)
-	GasEsitmateGasPremium(ctx context.Context, nblocksincl uint64, sender address.Address, gaslimit int64, tsk types.TipSetKey) (types.BigInt, error)
+	GasEstimateGasPremium(ctx context.Context, nblocksincl uint64, sender address.Address, gaslimit int64, tsk types.TipSetKey) (types.BigInt, error)
 	WalletBalance(ctx context.Context, addr address.Address) (types.BigInt, error)
 }
 
@@ -293,7 +293,7 @@ func ProcessTipset(ctx context.Context, api processTipSetApi, tipset *types.TipS
 		refundValue := refunds.GetRefund(maddr)
 
 		// We want to try and ensure these messages get mined quickly
-		gasPremium, err := api.GasEsitmateGasPremium(ctx, 0, wallet, 0, tipset.Key())
+		gasPremium, err := api.GasEstimateGasPremium(ctx, 0, wallet, 0, tipset.Key())
 		if err != nil {
 			log.Warnw("failed to estimate gas premium", "err", err)
 			continue
diff --git a/node/impl/full/gas.go b/node/impl/full/gas.go
index c14c147a0..49f07b271 100644
--- a/node/impl/full/gas.go
+++ b/node/impl/full/gas.go
@@ -59,7 +59,7 @@ func (a *GasAPI) GasEstimateFeeCap(ctx context.Context, msg *types.Message, maxq
 	return out, nil
 }
 
-func (a *GasAPI) GasEsitmateGasPremium(ctx context.Context, nblocksincl uint64,
+func (a *GasAPI) GasEstimateGasPremium(ctx context.Context, nblocksincl uint64,
 	sender address.Address, gaslimit int64, _ types.TipSetKey) (types.BigInt, error) {
 
 	if nblocksincl == 0 {
diff --git a/node/impl/full/mpool.go b/node/impl/full/mpool.go
index cf901f77d..caf4255f3 100644
--- a/node/impl/full/mpool.go
+++ b/node/impl/full/mpool.go
@@ -152,7 +152,7 @@ func (a *MpoolAPI) MpoolPushMessage(ctx context.Context, msg *types.Message) (*t
 	}
 
 	if msg.GasPremium == types.EmptyInt || types.BigCmp(msg.GasPremium, types.NewInt(0)) == 0 {
-		gasPremium, err := a.GasEsitmateGasPremium(ctx, 2, msg.From, msg.GasLimit, types.TipSetKey{})
+		gasPremium, err := a.GasEstimateGasPremium(ctx, 2, msg.From, msg.GasLimit, types.TipSetKey{})
 		if err != nil {
 			return nil, xerrors.Errorf("estimating gas price: %w", err)
 		}