diff --git a/core/types/gen_receipt_json.go b/core/types/gen_receipt_json.go
index 1f10aadfc0..d83be14477 100644
--- a/core/types/gen_receipt_json.go
+++ b/core/types/gen_receipt_json.go
@@ -25,7 +25,7 @@ func (r Receipt) MarshalJSON() ([]byte, error) {
 		TxHash            common.Hash    `json:"transactionHash" gencodec:"required"`
 		ContractAddress   common.Address `json:"contractAddress"`
 		GasUsed           hexutil.Uint64 `json:"gasUsed" gencodec:"required"`
-		EffectiveGasPrice *big.Int       `json:"effectiveGasPrice"`
+		EffectiveGasPrice *hexutil.Big   `json:"effectiveGasPrice"`
 		BlockHash         common.Hash    `json:"blockHash,omitempty"`
 		BlockNumber       *hexutil.Big   `json:"blockNumber,omitempty"`
 		TransactionIndex  hexutil.Uint   `json:"transactionIndex"`
@@ -40,7 +40,7 @@ func (r Receipt) MarshalJSON() ([]byte, error) {
 	enc.TxHash = r.TxHash
 	enc.ContractAddress = r.ContractAddress
 	enc.GasUsed = hexutil.Uint64(r.GasUsed)
-	enc.EffectiveGasPrice = r.EffectiveGasPrice
+	enc.EffectiveGasPrice = (*hexutil.Big)(r.EffectiveGasPrice)
 	enc.BlockHash = r.BlockHash
 	enc.BlockNumber = (*hexutil.Big)(r.BlockNumber)
 	enc.TransactionIndex = hexutil.Uint(r.TransactionIndex)
@@ -59,7 +59,7 @@ func (r *Receipt) UnmarshalJSON(input []byte) error {
 		TxHash            *common.Hash    `json:"transactionHash" gencodec:"required"`
 		ContractAddress   *common.Address `json:"contractAddress"`
 		GasUsed           *hexutil.Uint64 `json:"gasUsed" gencodec:"required"`
-		EffectiveGasPrice *big.Int        `json:"effectiveGasPrice"`
+		EffectiveGasPrice *hexutil.Big    `json:"effectiveGasPrice"`
 		BlockHash         *common.Hash    `json:"blockHash,omitempty"`
 		BlockNumber       *hexutil.Big    `json:"blockNumber,omitempty"`
 		TransactionIndex  *hexutil.Uint   `json:"transactionIndex"`
@@ -101,7 +101,7 @@ func (r *Receipt) UnmarshalJSON(input []byte) error {
 	}
 	r.GasUsed = uint64(*dec.GasUsed)
 	if dec.EffectiveGasPrice != nil {
-		r.EffectiveGasPrice = dec.EffectiveGasPrice
+		r.EffectiveGasPrice = (*big.Int)(dec.EffectiveGasPrice)
 	}
 	if dec.BlockHash != nil {
 		r.BlockHash = *dec.BlockHash
diff --git a/core/types/receipt.go b/core/types/receipt.go
index 4f8a660cc3..687d25ccab 100644
--- a/core/types/receipt.go
+++ b/core/types/receipt.go
@@ -76,6 +76,7 @@ type receiptMarshaling struct {
 	PostState         hexutil.Bytes
 	Status            hexutil.Uint64
 	CumulativeGasUsed hexutil.Uint64
+	EffectiveGasPrice *hexutil.Big
 	GasUsed           hexutil.Uint64
 	BlockNumber       *hexutil.Big
 	TransactionIndex  hexutil.Uint