diff --git a/daml-lf/engine/src/test/scala/com/digitalasset/daml/lf/engine/EngineTest.scala b/daml-lf/engine/src/test/scala/com/digitalasset/daml/lf/engine/EngineTest.scala
index 20a7171bdfc6..04e13abcfb25 100644
--- a/daml-lf/engine/src/test/scala/com/digitalasset/daml/lf/engine/EngineTest.scala
+++ b/daml-lf/engine/src/test/scala/com/digitalasset/daml/lf/engine/EngineTest.scala
@@ -2302,10 +2302,8 @@ object EngineTest {
 
     finalState.map(state =>
       (
-        VersionedTransaction(
-          state.nodes.values.map(_.optVersion.getOrElse(TxVersions.minVersion)).max,
-          state.nodes,
-          state.roots.toImmArray,
+        TxVersions.asVersionedTransaction(
+          Tx(state.nodes, state.roots.toImmArray)
         ),
         Tx.Metadata(
           submissionSeed = None,
diff --git a/daml-lf/transaction/src/main/scala/com/digitalasset/daml/lf/transaction/TransactionVersion.scala b/daml-lf/transaction/src/main/scala/com/digitalasset/daml/lf/transaction/TransactionVersion.scala
index 3afeafa705f8..538133f2ec86 100644
--- a/daml-lf/transaction/src/main/scala/com/digitalasset/daml/lf/transaction/TransactionVersion.scala
+++ b/daml-lf/transaction/src/main/scala/com/digitalasset/daml/lf/transaction/TransactionVersion.scala
@@ -67,6 +67,19 @@ object TransactionVersion {
     )
   }
 
+  private[lf] def asVersionedTransaction(
+      tx: Transaction
+  ): VersionedTransaction = tx match {
+    case Transaction(nodes, roots) =>
+      val rootVersions = roots.iterator.map(nodeId =>
+        nodes(nodeId) match {
+          case action: Node.Action => action.version
+          case _: Node.Rollback => minExceptions
+        }
+      )
+      VersionedTransaction(rootVersions.max, nodes, roots)
+  }
+
   val StableVersions: VersionRange[TransactionVersion] =
     LanguageVersion.StableVersions.map(assignNodeVersion)