diff --git a/node/src/main/kotlin/com/r3corda/node/utilities/ANSIProgressObserver.kt b/node/src/main/kotlin/com/r3corda/node/utilities/ANSIProgressObserver.kt
index 564cb0387e..5420adc6b9 100644
--- a/node/src/main/kotlin/com/r3corda/node/utilities/ANSIProgressObserver.kt
+++ b/node/src/main/kotlin/com/r3corda/node/utilities/ANSIProgressObserver.kt
@@ -11,7 +11,6 @@ import java.util.*
  * they are added to the [StateMachineManager].
  */
 class ANSIProgressObserver(val smm: StateMachineManager) {
-
     init {
         smm.changes.subscribe { change ->
             when (change.addOrRemove) {
diff --git a/src/main/kotlin/com/r3corda/demos/TraderDemo.kt b/src/main/kotlin/com/r3corda/demos/TraderDemo.kt
index 65e425b91d..61573b9e02 100644
--- a/src/main/kotlin/com/r3corda/demos/TraderDemo.kt
+++ b/src/main/kotlin/com/r3corda/demos/TraderDemo.kt
@@ -191,7 +191,7 @@ private fun runSeller(node: Node, amount: Amount<Currency>, otherSide: Party) {
     }
 
     tradeTX.success {
-        println("Sale completed - we have a happy customer!\n\nFinal transaction is:\n\n${Emoji.renderIfSupported(it.tx)}")
+        log.info("Sale completed - we have a happy customer!\n\nFinal transaction is:\n\n${Emoji.renderIfSupported(it.tx)}")
         thread {
             node.stop()
         }
@@ -250,7 +250,7 @@ private class TraderDemoProtocolBuyer(val otherSide: Party,
         // TODO: This should be moved into the protocol itself.
         serviceHub.recordTransactions(listOf(tradeTX))
 
-        println("Purchase complete - we are a happy customer! Final transaction is: " +
+        log.info("Purchase complete - we are a happy customer! Final transaction is: " +
                 "\n\n${Emoji.renderIfSupported(tradeTX.tx)}")
 
         logIssuanceAttachment(tradeTX)
@@ -271,7 +271,7 @@ private class TraderDemoProtocolBuyer(val otherSide: Party,
 
         cpIssuance.attachments.first().let {
             val p = attachmentsPath.toAbsolutePath().resolve("$it.jar")
-            println("""
+            log.info("""
 
 The issuance of the commercial paper came with an attachment. You can find it expanded in this directory:
 $p