diff --git a/ethclient/ethclient.go b/ethclient/ethclient.go
index 8a0018431..766efcf57 100644
--- a/ethclient/ethclient.go
+++ b/ethclient/ethclient.go
@@ -570,6 +570,14 @@ func toBlockNumArg(number *big.Int) string {
 	if number.Cmp(pending) == 0 {
 		return "pending"
 	}
+	finalized := big.NewInt(int64(rpc.FinalizedBlockNumber))
+	if number.Cmp(finalized) == 0 {
+		return "finalized"
+	}
+	safe := big.NewInt(int64(rpc.SafeBlockNumber))
+	if number.Cmp(safe) == 0 {
+		return "safe"
+	}
 	return hexutil.EncodeBig(number)
 }
 
diff --git a/ethclient/gethclient/gethclient.go b/ethclient/gethclient/gethclient.go
index a86f4339f..edc441bd1 100644
--- a/ethclient/gethclient/gethclient.go
+++ b/ethclient/gethclient/gethclient.go
@@ -187,6 +187,14 @@ func toBlockNumArg(number *big.Int) string {
 	if number.Cmp(pending) == 0 {
 		return "pending"
 	}
+	finalized := big.NewInt(int64(rpc.FinalizedBlockNumber))
+	if number.Cmp(finalized) == 0 {
+		return "finalized"
+	}
+	safe := big.NewInt(int64(rpc.SafeBlockNumber))
+	if number.Cmp(safe) == 0 {
+		return "safe"
+	}
 	return hexutil.EncodeBig(number)
 }