diff --git a/app/rpc/namespaces/eth/api.go b/app/rpc/namespaces/eth/api.go
index 5604fbb79f..f50d4d8399 100644
--- a/app/rpc/namespaces/eth/api.go
+++ b/app/rpc/namespaces/eth/api.go
@@ -1122,7 +1122,7 @@ func (api *PublicEthereumAPI) simDoCall(args rpctypes.CallArgs, cap uint64) (uin
 }
 
 // EstimateGas returns an estimate of gas usage for the given smart contract call.
-func (api *PublicEthereumAPI) EstimateGas(args rpctypes.CallArgs) (hexutil.Uint64, error) {
+func (api *PublicEthereumAPI) EstimateGas(args rpctypes.CallArgs, blockNrOrHash rpctypes.BlockNumberOrHash) (hexutil.Uint64, error) {
 	monitor := monitor.GetMonitor("eth_estimateGas", api.logger, api.Metrics).OnBegin()
 	defer monitor.OnEnd("args", args)
 	rateLimiter := api.GetRateLimiter("eth_estimateGas")
@@ -1673,7 +1673,7 @@ func (api *PublicEthereumAPI) generateFromArgs(args rpctypes.SendTxArgs) (*evmty
 			Value:    args.Value,
 			Data:     &input,
 		}
-		gl, err := api.EstimateGas(callArgs)
+		gl, err := api.EstimateGas(callArgs, rpctypes.BlockNumberOrHash{})
 		if err != nil {
 			return nil, err
 		}
diff --git a/app/rpc/tests/rpc_test.go b/app/rpc/tests/rpc_test.go
index 16d6ecf08d..37f9ecd7f0 100644
--- a/app/rpc/tests/rpc_test.go
+++ b/app/rpc/tests/rpc_test.go
@@ -913,7 +913,7 @@ func (suite *RPCTestSuite) TestEth_EstimateGas_WithoutArgs() {
 }
 
 func (suite *RPCTestSuite) TestEth_EstimateGas_Transfer() {
-	param := make([]map[string]string, 1)
+	param := make([]map[string]string, 2)
 	param[0] = make(map[string]string)
 	param[0]["from"] = senderAddr.Hex()
 	param[0]["to"] = "0x1122334455667788990011223344556677889900"
@@ -933,7 +933,7 @@ func (suite *RPCTestSuite) TestEth_EstimateGas_Transfer() {
 func (suite *RPCTestSuite) TestEth_EstimateGas_ContractDeployment() {
 	bytecode := "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"
 
-	param := make([]map[string]string, 1)
+	param := make([]map[string]string, 1, 2)
 	param[0] = make(map[string]string)
 	param[0]["from"] = senderAddr.Hex()
 	param[0]["data"] = bytecode