diff --git a/integration-test/src/test/java/org/bitcoinj/core/TransactionBroadcastTest.java b/integration-test/src/test/java/org/bitcoinj/core/TransactionBroadcastTest.java
index d4fb969d4..ab7baa882 100644
--- a/integration-test/src/test/java/org/bitcoinj/core/TransactionBroadcastTest.java
+++ b/integration-test/src/test/java/org/bitcoinj/core/TransactionBroadcastTest.java
@@ -80,7 +80,7 @@ public class TransactionBroadcastTest extends TestWithPeerGroup {
     @Test
     public void fourPeers() throws Exception {
         InboundMessageQueuer[] channels = { connectPeer(1), connectPeer(2), connectPeer(3), connectPeer(4) };
-        Transaction tx = FakeTxBuilder.createFakeTx(UNITTEST);
+        Transaction tx = FakeTxBuilder.createFakeTx(TESTNET);
         tx.getConfidence().setSource(TransactionConfidence.Source.SELF);
         TransactionBroadcast broadcast = new TransactionBroadcast(peerGroup, tx);
         final AtomicDouble lastProgress = new AtomicDouble();
@@ -118,7 +118,7 @@ public class TransactionBroadcastTest extends TestWithPeerGroup {
         // immediately with the latest state. This avoids API users writing accidentally racy code when they use
         // a convenience method like peerGroup.broadcastTransaction.
         InboundMessageQueuer[] channels = { connectPeer(1), connectPeer(2), connectPeer(3), connectPeer(4) };
-        Transaction tx = FakeTxBuilder.createFakeTx(UNITTEST, CENT, address);
+        Transaction tx = FakeTxBuilder.createFakeTx(TESTNET, CENT, address);
         tx.getConfidence().setSource(TransactionConfidence.Source.SELF);
         TransactionBroadcast broadcast = peerGroup.broadcastTransaction(tx);
         inbound(channels[1], InventoryMessage.with(tx));
@@ -131,14 +131,14 @@ public class TransactionBroadcastTest extends TestWithPeerGroup {
     @Test
     public void rejectHandling() throws Exception {
         InboundMessageQueuer[] channels = { connectPeer(0), connectPeer(1), connectPeer(2), connectPeer(3), connectPeer(4) };
-        Transaction tx = FakeTxBuilder.createFakeTx(UNITTEST);
+        Transaction tx = FakeTxBuilder.createFakeTx(TESTNET);
         TransactionBroadcast broadcast = new TransactionBroadcast(peerGroup, tx);
         CompletableFuture<TransactionBroadcast> future = broadcast.broadcastAndAwaitRelay();
         // 0 and 3 are randomly selected to receive the broadcast.
         assertEquals(tx, outbound(channels[1]));
         assertEquals(tx, outbound(channels[2]));
         assertEquals(tx, outbound(channels[4]));
-        RejectMessage reject = new RejectMessage(UNITTEST, RejectMessage.RejectCode.DUST, tx.getTxId(), "tx", "dust");
+        RejectMessage reject = new RejectMessage(TESTNET, RejectMessage.RejectCode.DUST, tx.getTxId(), "tx", "dust");
         inbound(channels[1], reject);
         inbound(channels[4], reject);
         try {
@@ -163,7 +163,7 @@ public class TransactionBroadcastTest extends TestWithPeerGroup {
         assertEquals(FIFTY_COINS, wallet.getBalance());
 
         // Now create a spend, and expect the announcement on p1.
-        Address dest = LegacyAddress.fromKey(UNITTEST, new ECKey());
+        Address dest = LegacyAddress.fromKey(TESTNET, new ECKey());
         Wallet.SendResult sendResult = wallet.sendCoins(peerGroup, dest, COIN);
         assertFalse(sendResult.broadcastComplete.isDone());
         Transaction t1;
@@ -190,7 +190,7 @@ public class TransactionBroadcastTest extends TestWithPeerGroup {
         // Make sure we can create spends, and that they are announced. Then do the same with offline mode.
 
         // Set up connections and block chain.
-        VersionMessage ver = new VersionMessage(UNITTEST, 2);
+        VersionMessage ver = new VersionMessage(TESTNET, 2);
         ver.localServices = VersionMessage.NODE_NETWORK;
         InboundMessageQueuer p1 = connectPeer(1, ver);
         InboundMessageQueuer p2 = connectPeer(2);
@@ -207,7 +207,7 @@ public class TransactionBroadcastTest extends TestWithPeerGroup {
         wallet.addTransactionConfidenceEventListener((wallet, tx) -> transactions[0] = tx);
 
         // Now create a spend, and expect the announcement on p1.
-        Address dest = LegacyAddress.fromKey(UNITTEST, new ECKey());
+        Address dest = LegacyAddress.fromKey(TESTNET, new ECKey());
         Wallet.SendResult sendResult = wallet.sendCoins(peerGroup, dest, COIN);
         assertNotNull(sendResult.tx);
         Threading.waitForUserCode();
@@ -228,7 +228,7 @@ public class TransactionBroadcastTest extends TestWithPeerGroup {
         // 49 BTC in change.
         assertEquals(valueOf(49, 0), t1.getValueSentToMe(wallet));
         // The future won't complete until it's heard back from the network on p2.
-        InventoryMessage inv = new InventoryMessage(UNITTEST);
+        InventoryMessage inv = new InventoryMessage(TESTNET);
         inv.addTransaction(t1);
         inbound(p2, inv);
         pingAndWait(p2);