diff --git a/ethclient/simulated/backend.go b/ethclient/simulated/backend.go
index 170004c36c..54675b6dd6 100644
--- a/ethclient/simulated/backend.go
+++ b/ethclient/simulated/backend.go
@@ -56,7 +56,7 @@ type Client interface {
 	ethereum.ContractCaller
 	ethereum.GasEstimator
 	ethereum.GasPricer
-	ethereum.GasTipCapReader
+	ethereum.GasPricer1559
 	ethereum.FeeHistoryReader
 	ethereum.LogFilterer
 	ethereum.PendingStateReader
diff --git a/interfaces.go b/interfaces.go
index 0cc402ffd0..1892309ed3 100644
--- a/interfaces.go
+++ b/interfaces.go
@@ -199,8 +199,8 @@ type GasPricer interface {
 	SuggestGasPrice(ctx context.Context) (*big.Int, error)
 }
 
-// GasTipCapReader provides access to the EIP-1559 gas price oracle.
-type GasTipCapReader interface {
+// GasPricer1559 provides access to the EIP-1559 gas price oracle.
+type GasPricer1559 interface {
 	SuggestGasTipCap(ctx context.Context) (*big.Int, error)
 }