diff --git a/core/store/models/gen_log_json.go b/core/store/models/gen_log_json.go
old mode 100644
new mode 100755
index 7781c3d0dba..cf6c6647dbf
--- a/core/store/models/gen_log_json.go
+++ b/core/store/models/gen_log_json.go
@@ -20,9 +20,9 @@ func (l Log) MarshalJSON() ([]byte, error) {
 		Data        hexutil.Bytes  `json:"data" gencodec:"required"`
 		BlockNumber hexutil.Uint64 `json:"blockNumber"`
 		TxHash      common.Hash    `json:"transactionHash"`
-		TxIndex     hexutil.Uint   `json:"transactionIndex" gencodec:"required"`
+		TxIndex     hexutil.Uint   `json:"transactionIndex"`
 		BlockHash   common.Hash    `json:"blockHash"`
-		Index       hexutil.Uint   `json:"logIndex" gencodec:"required"`
+		Index       hexutil.Uint   `json:"logIndex"`
 		Removed     bool           `json:"removed"`
 	}
 	var enc Log
@@ -46,9 +46,9 @@ func (l *Log) UnmarshalJSON(input []byte) error {
 		Data        *hexutil.Bytes  `json:"data" gencodec:"required"`
 		BlockNumber *hexutil.Uint64 `json:"blockNumber"`
 		TxHash      *common.Hash    `json:"transactionHash"`
-		TxIndex     *hexutil.Uint   `json:"transactionIndex" gencodec:"required"`
+		TxIndex     *hexutil.Uint   `json:"transactionIndex"`
 		BlockHash   *common.Hash    `json:"blockHash"`
-		Index       *hexutil.Uint   `json:"logIndex" gencodec:"required"`
+		Index       *hexutil.Uint   `json:"logIndex"`
 		Removed     *bool           `json:"removed"`
 	}
 	var dec Log
@@ -73,17 +73,15 @@ func (l *Log) UnmarshalJSON(input []byte) error {
 	if dec.TxHash != nil {
 		l.TxHash = *dec.TxHash
 	}
-	if dec.TxIndex == nil {
-		return errors.New("missing required field 'transactionIndex' for Log")
+	if dec.TxIndex != nil {
+		l.TxIndex = uint(*dec.TxIndex)
 	}
-	l.TxIndex = uint(*dec.TxIndex)
 	if dec.BlockHash != nil {
 		l.BlockHash = *dec.BlockHash
 	}
-	if dec.Index == nil {
-		return errors.New("missing required field 'logIndex' for Log")
+	if dec.Index != nil {
+		l.Index = uint(*dec.Index)
 	}
-	l.Index = uint(*dec.Index)
 	if dec.Removed != nil {
 		l.Removed = *dec.Removed
 	}