diff --git a/core/types/gen_header_json.go b/core/types/gen_header_json.go
index 73287257bd..5c8b81652d 100644
--- a/core/types/gen_header_json.go
+++ b/core/types/gen_header_json.go
@@ -33,7 +33,6 @@ func (h Header) MarshalJSON() ([]byte, error) {
 		Nonce           BlockNonce     `json:"nonce"`
 		BaseFee         *hexutil.Big   `json:"baseFeePerGas" rlp:"optional"`
 		WithdrawalsHash *common.Hash   `json:"withdrawalsRoot" rlp:"optional"`
-		ExcessDataGas   *big.Int       `json:"excessDataGas" rlp:"optional"`
 		Hash            common.Hash    `json:"hash"`
 	}
 	var enc Header
@@ -54,7 +53,6 @@ func (h Header) MarshalJSON() ([]byte, error) {
 	enc.Nonce = h.Nonce
 	enc.BaseFee = (*hexutil.Big)(h.BaseFee)
 	enc.WithdrawalsHash = h.WithdrawalsHash
-	enc.ExcessDataGas = h.ExcessDataGas
 	enc.Hash = h.Hash()
 	return json.Marshal(&enc)
 }
@@ -79,7 +77,6 @@ func (h *Header) UnmarshalJSON(input []byte) error {
 		Nonce           *BlockNonce     `json:"nonce"`
 		BaseFee         *hexutil.Big    `json:"baseFeePerGas" rlp:"optional"`
 		WithdrawalsHash *common.Hash    `json:"withdrawalsRoot" rlp:"optional"`
-		ExcessDataGas   *big.Int        `json:"excessDataGas" rlp:"optional"`
 	}
 	var dec Header
 	if err := json.Unmarshal(input, &dec); err != nil {
@@ -148,8 +145,5 @@ func (h *Header) UnmarshalJSON(input []byte) error {
 	if dec.WithdrawalsHash != nil {
 		h.WithdrawalsHash = dec.WithdrawalsHash
 	}
-	if dec.ExcessDataGas != nil {
-		h.ExcessDataGas = dec.ExcessDataGas
-	}
 	return nil
 }
diff --git a/core/types/gen_header_rlp.go b/core/types/gen_header_rlp.go
index 005f6c2ad4..7fd2cf8f2d 100644
--- a/core/types/gen_header_rlp.go
+++ b/core/types/gen_header_rlp.go
@@ -42,8 +42,7 @@ func (obj *Header) EncodeRLP(_w io.Writer) error {
 	w.WriteBytes(obj.Nonce[:])
 	_tmp1 := obj.BaseFee != nil
 	_tmp2 := obj.WithdrawalsHash != nil
-	_tmp3 := obj.ExcessDataGas != nil
-	if _tmp1 || _tmp2 || _tmp3 {
+	if _tmp1 || _tmp2 {
 		if obj.BaseFee == nil {
 			w.Write(rlp.EmptyString)
 		} else {
@@ -53,23 +52,13 @@ func (obj *Header) EncodeRLP(_w io.Writer) error {
 			w.WriteBigInt(obj.BaseFee)
 		}
 	}
-	if _tmp2 || _tmp3 {
+	if _tmp2 {
 		if obj.WithdrawalsHash == nil {
 			w.Write([]byte{0x80})
 		} else {
 			w.WriteBytes(obj.WithdrawalsHash[:])
 		}
 	}
-	if _tmp3 {
-		if obj.ExcessDataGas == nil {
-			w.Write(rlp.EmptyString)
-		} else {
-			if obj.ExcessDataGas.Sign() == -1 {
-				return rlp.ErrNegativeBigInt
-			}
-			w.WriteBigInt(obj.ExcessDataGas)
-		}
-	}
 	w.ListEnd(_tmp0)
 	return w.Flush()
 }