diff --git a/core/beacon/gen_edv2.go b/core/beacon/gen_edv2.go
new file mode 100644
index 000000000000..4b3115871397
--- /dev/null
+++ b/core/beacon/gen_edv2.go
@@ -0,0 +1,46 @@
+// Code generated by github.com/fjl/gencodec. DO NOT EDIT.
+
+package beacon
+
+import (
+	"encoding/json"
+	"errors"
+	"math/big"
+
+	"github.com/ethereum/go-ethereum/common/hexutil"
+)
+
+var _ = (*executableDataV2Marshaling)(nil)
+
+// MarshalJSON marshals as JSON.
+func (e ExecutableDataV2) MarshalJSON() ([]byte, error) {
+	type ExecutableDataV2 struct {
+		ExecutionPayload *ExecutableData `json:"executionPayload"  gencodec:"required"`
+		BlockValue       *hexutil.Big    `json:"blockValue"  gencodec:"required"`
+	}
+	var enc ExecutableDataV2
+	enc.ExecutionPayload = e.ExecutionPayload
+	enc.BlockValue = (*hexutil.Big)(e.BlockValue)
+	return json.Marshal(&enc)
+}
+
+// UnmarshalJSON unmarshals from JSON.
+func (e *ExecutableDataV2) UnmarshalJSON(input []byte) error {
+	type ExecutableDataV2 struct {
+		ExecutionPayload *ExecutableData `json:"executionPayload"  gencodec:"required"`
+		BlockValue       *hexutil.Big    `json:"blockValue"  gencodec:"required"`
+	}
+	var dec ExecutableDataV2
+	if err := json.Unmarshal(input, &dec); err != nil {
+		return err
+	}
+	if dec.ExecutionPayload == nil {
+		return errors.New("missing required field 'executionPayload' for ExecutableDataV2")
+	}
+	e.ExecutionPayload = dec.ExecutionPayload
+	if dec.BlockValue == nil {
+		return errors.New("missing required field 'blockValue' for ExecutableDataV2")
+	}
+	e.BlockValue = (*big.Int)(dec.BlockValue)
+	return nil
+}
diff --git a/core/beacon/types.go b/core/beacon/types.go
index 69b2e1c3b030..166072c2c1d9 100644
--- a/core/beacon/types.go
+++ b/core/beacon/types.go
@@ -85,11 +85,18 @@ type executableDataMarshaling struct {
 	Transactions  []hexutil.Bytes
 }
 
+//go:generate go run github.com/fjl/gencodec -type ExecutableDataV2 -field-override executableDataV2Marshaling -out gen_edv2.go
+
 type ExecutableDataV2 struct {
 	ExecutionPayload *ExecutableData `json:"executionPayload"  gencodec:"required"`
 	BlockValue       *big.Int        `json:"blockValue"  gencodec:"required"`
 }
 
+// JSON type overrides for ExecutableDataV2.
+type executableDataV2Marshaling struct {
+	BlockValue *hexutil.Big
+}
+
 type PayloadStatusV1 struct {
 	Status          string       `json:"status"`
 	LatestValidHash *common.Hash `json:"latestValidHash"`