diff --git a/experimental/ha-testing/src/integration-test/kotlin/net/corda/instrumentation/byteman/InstrumentationTest.kt b/experimental/ha-testing/src/integration-test/kotlin/net/corda/instrumentation/byteman/InstrumentationTest.kt
index 6f2d49cab9..6905f779cc 100644
--- a/experimental/ha-testing/src/integration-test/kotlin/net/corda/instrumentation/byteman/InstrumentationTest.kt
+++ b/experimental/ha-testing/src/integration-test/kotlin/net/corda/instrumentation/byteman/InstrumentationTest.kt
@@ -19,6 +19,7 @@ import net.corda.testing.core.ALICE_NAME
 import net.corda.testing.core.DUMMY_NOTARY_NAME
 import net.corda.testing.core.singleIdentity
 import net.corda.testing.driver.NodeHandle
+import net.corda.testing.driver.NodeParameters
 import net.corda.testing.driver.OutOfProcess
 import net.corda.testing.driver.internal.incrementalPortAllocation
 import net.corda.testing.internal.IntegrationTest
@@ -86,7 +87,7 @@ class InstrumentationTest : IntegrationTest() {
         ) {
 
             bytemanPort = portAllocation.nextPort()
-            alice = startNode(providedName = ALICE_NAME, rpcUsers = listOf(testUser), bytemanPort = bytemanPort).getOrThrow()
+            alice = startNode(NodeParameters(providedName = ALICE_NAME, rpcUsers = listOf(testUser)), bytemanPort = bytemanPort).getOrThrow()
             raftNotaryIdentity = defaultNotaryIdentity
             notaryNodes = defaultNotaryHandle.nodeHandles.getOrThrow().map { it as OutOfProcess }
 
@@ -203,7 +204,7 @@ ENDRULE
 
             // Restart node
             alice.stop() // this should perform un-registration in the NetworkMap
-            alice = startNode(providedName = ALICE_NAME, rpcUsers = listOf(testUser), bytemanPort = bytemanPort).getOrThrow()
+            alice = startNode(NodeParameters(providedName = ALICE_NAME, rpcUsers = listOf(testUser)), bytemanPort = bytemanPort).getOrThrow()
             aliceProxy = connectRpc(alice)
 
             // Check that all 11 transactions are present
diff --git a/experimental/ha-testing/src/integration-test/kotlin/net/corda/instrumentation/byteman/SystematicTerminationTest.kt b/experimental/ha-testing/src/integration-test/kotlin/net/corda/instrumentation/byteman/SystematicTerminationTest.kt
index c31c444e47..607c5e8107 100644
--- a/experimental/ha-testing/src/integration-test/kotlin/net/corda/instrumentation/byteman/SystematicTerminationTest.kt
+++ b/experimental/ha-testing/src/integration-test/kotlin/net/corda/instrumentation/byteman/SystematicTerminationTest.kt
@@ -21,6 +21,7 @@ import net.corda.node.services.statemachine.ActionExecutorImpl
 import net.corda.testing.core.ALICE_NAME
 import net.corda.testing.core.singleIdentity
 import net.corda.testing.driver.NodeHandle
+import net.corda.testing.driver.NodeParameters
 import net.corda.testing.driver.OutOfProcess
 import net.corda.testing.driver.internal.incrementalPortAllocation
 import net.corda.testing.internal.IntegrationTest
@@ -112,7 +113,7 @@ class SystematicTerminationTest(private val terminationData: TerminationData) :
                 //, isDebug = true
         ) {
             bytemanPort = portAllocation.nextPort()
-            alice = startNode(providedName = ALICE_NAME, rpcUsers = listOf(testUser), bytemanPort = bytemanPort).getOrThrow()
+            alice = startNode(NodeParameters(providedName = ALICE_NAME, rpcUsers = listOf(testUser)), bytemanPort = bytemanPort).getOrThrow()
             raftNotaryIdentity = defaultNotaryIdentity
 
             aliceProxy = connectRpc(alice)
@@ -192,7 +193,7 @@ ENDRULE
 
             // Restart node
             alice.stop() // this should perform un-registration in the NetworkMap
-            alice = startNode(providedName = ALICE_NAME, rpcUsers = listOf(testUser), bytemanPort = bytemanPort).getOrThrow()
+            alice = startNode(NodeParameters(providedName = ALICE_NAME, rpcUsers = listOf(testUser)), bytemanPort = bytemanPort).getOrThrow()
             aliceProxy = connectRpc(alice)
 
             logger.info("Node re-started successfully")
diff --git a/testing/node-driver/src/main/kotlin/net/corda/testing/node/internal/DriverDSLImpl.kt b/testing/node-driver/src/main/kotlin/net/corda/testing/node/internal/DriverDSLImpl.kt
index f805749189..3b18f35251 100644
--- a/testing/node-driver/src/main/kotlin/net/corda/testing/node/internal/DriverDSLImpl.kt
+++ b/testing/node-driver/src/main/kotlin/net/corda/testing/node/internal/DriverDSLImpl.kt
@@ -194,7 +194,9 @@ class DriverDSLImpl(
         }
     }
 
-    override fun startNode(parameters: NodeParameters): CordaFuture<NodeHandle> {
+    override fun startNode(parameters: NodeParameters): CordaFuture<NodeHandle> = startNode(parameters, bytemanPort = null)
+
+    override fun startNode(parameters: NodeParameters, bytemanPort: Int?): CordaFuture<NodeHandle> {
         val p2pAddress = portAllocation.nextHostAndPort()
         // TODO: Derive name from the full picked name, don't just wrap the common name
         val name = parameters.providedName ?: CordaX500Name("${oneOf(names).organisation}-${p2pAddress.port}", "London", "GB")
@@ -978,16 +980,7 @@ interface InternalDriverDSL : DriverDSL {
     fun shutdown()
 
     fun startNode(
-            defaultParameters: NodeParameters = NodeParameters(),
-            providedName: CordaX500Name? = defaultParameters.providedName,
-            rpcUsers: List<User> = defaultParameters.rpcUsers,
-            verifierType: VerifierType = defaultParameters.verifierType,
-            customOverrides: Map<String, Any?> = defaultParameters.customOverrides,
-            startInSameProcess: Boolean? = defaultParameters.startInSameProcess,
-            maximumHeapSize: String = defaultParameters.maximumHeapSize,
-            additionalCordapps: Collection<TestCordapp> = defaultParameters.additionalCordapps,
-            regenerateCordappsOnStart: Boolean = defaultParameters.regenerateCordappsOnStart,
-            flowOverrides: Map<out Class<out FlowLogic<*>>, Class<out FlowLogic<*>>> = emptyMap(),
+            parameters: NodeParameters = NodeParameters(),
             bytemanPort: Int? = null
     ): CordaFuture<NodeHandle>
 }