diff --git a/src/test/java/org/qortal/test/SerializationTests.java b/src/test/java/org/qortal/test/SerializationTests.java
index 8422bd9c..d5c12c00 100644
--- a/src/test/java/org/qortal/test/SerializationTests.java
+++ b/src/test/java/org/qortal/test/SerializationTests.java
@@ -59,6 +59,7 @@ public class SerializationTests extends Common {
 				TransactionData transactionData = TransactionUtils.randomTransaction(repository, signingAccount, txType, true);
 				Transaction transaction = Transaction.fromData(repository, transactionData);
 				transaction.sign(signingAccount);
+				transaction.importAsUnconfirmed();
 
 				final int claimedLength = TransactionTransformer.getDataLength(transactionData);
 				byte[] serializedTransaction = TransactionTransformer.toBytes(transactionData);