diff --git a/core/src/test/java/org/bitcoinj/core/TransactionBroadcastTest.java b/core/src/test/java/org/bitcoinj/core/TransactionBroadcastTest.java
index c600ac93..f9fc0c98 100644
--- a/core/src/test/java/org/bitcoinj/core/TransactionBroadcastTest.java
+++ b/core/src/test/java/org/bitcoinj/core/TransactionBroadcastTest.java
@@ -93,6 +93,7 @@ public class TransactionBroadcastTest extends TestWithPeerGroup {
         inbound(channels[1], InventoryMessage.with(tx));
         pingAndWait(channels[1]);
         Threading.waitForUserCode();
+        // FIXME flaky test - future is not handled on user thread
         assertTrue(future.isDone());
     }