diff --git a/jsonrpc/eth_endpoint.go b/jsonrpc/eth_endpoint.go
index cac6fdbf9d..e407794e5f 100644
--- a/jsonrpc/eth_endpoint.go
+++ b/jsonrpc/eth_endpoint.go
@@ -906,13 +906,13 @@ func (e *Eth) GetProverData(block BlockNumberOrHash) (interface{}, error) {
 		})
 	}
 
-	chainId, err := e.ChainId()
+	chainID, err := e.ChainId()
 	if err != nil {
 		return nil, err
 	}
 
 	return &prover.ProverData{
-		ChainId:             chainId,
+		ChainID:             chainID,
 		BlockHeader:         *header,
 		PreviousBlockHeader: *previousHeader,
 		Accounts:            accounts,
diff --git a/prover/prover.go b/prover/prover.go
index 517f595dcd..ad42f5b53e 100644
--- a/prover/prover.go
+++ b/prover/prover.go
@@ -33,7 +33,7 @@ type ProverAccountProof struct {
 }
 
 type ProverData struct {
-	ChainId             interface{}
+	ChainID             interface{}
 	BlockHeader         types.Header
 	PreviousBlockHeader types.Header
 	Accounts            interface{}