diff --git a/node/src/main/kotlin/net/corda/node/services/statemachine/FlowStateMachineImpl.kt b/node/src/main/kotlin/net/corda/node/services/statemachine/FlowStateMachineImpl.kt
index 3a4c2ea198..eabc9b641a 100644
--- a/node/src/main/kotlin/net/corda/node/services/statemachine/FlowStateMachineImpl.kt
+++ b/node/src/main/kotlin/net/corda/node/services/statemachine/FlowStateMachineImpl.kt
@@ -20,9 +20,7 @@ import net.corda.core.concurrent.CordaFuture
 import net.corda.core.context.InvocationContext
 import net.corda.core.flows.*
 import net.corda.core.identity.Party
-import net.corda.core.internal.FlowIORequest
-import net.corda.core.internal.FlowStateMachine
-import net.corda.core.internal.uncheckedCast
+import net.corda.core.internal.*
 import net.corda.core.serialization.SerializationContext
 import net.corda.core.serialization.serialize
 import net.corda.core.utilities.Try