diff --git a/testutil/server.go b/testutil/server.go
index d41d4778..e70cdfc8 100644
--- a/testutil/server.go
+++ b/testutil/server.go
@@ -248,14 +248,14 @@ func (t *TestServer) SendTxn(txn *ethgo.Transaction) (*ethgo.Receipt, error) {
 		txn.From = t.Account(0)
 	}
 
-	if txn.Type == ethgo.TransactionLegacy {
+	if txn.Type == ethgo.TransactionDynamicFee {
+		if txn.MaxPriorityFeePerGas == nil || txn.MaxPriorityFeePerGas.Cmp(big.NewInt(0)) == 0 {
+			txn.MaxPriorityFeePerGas = new(big.Int).SetUint64(DefaultGasPrice)
+		}
+	} else {
 		if txn.GasPrice == 0 {
 			txn.GasPrice = DefaultGasPrice
 		}
-	} else if txn.Type == ethgo.TransactionDynamicFee {
-		if txn.MaxPriorityFeePerGas.Cmp(big.NewInt(0)) == 0 {
-			txn.MaxPriorityFeePerGas = new(big.Int).SetUint64(DefaultGasPrice)
-		}
 	}
 	if txn.Gas == 0 {
 		txn.Gas = DefaultGasLimit