diff --git a/engine/runtime-compiler/src/main/java/org/enso/compiler/pass/analyse/PassPersistance.java b/engine/runtime-compiler/src/main/java/org/enso/compiler/pass/analyse/PassPersistance.java
index e3a0875a743..bd939c45c53 100644
--- a/engine/runtime-compiler/src/main/java/org/enso/compiler/pass/analyse/PassPersistance.java
+++ b/engine/runtime-compiler/src/main/java/org/enso/compiler/pass/analyse/PassPersistance.java
@@ -146,7 +146,7 @@ public final class PassPersistance {
   @org.openide.util.lookup.ServiceProvider(service = Persistance.class)
   public static final class PersistAliasAnalysisGraph extends Persistance<Graph> {
     public PersistAliasAnalysisGraph() {
-      super(Graph.class, false, 1119);
+      super(Graph.class, false, 1131);
     }
 
     @SuppressWarnings("unchecked")
@@ -160,6 +160,10 @@ public final class PassPersistance {
       var links =
           (scala.collection.immutable.Set) in.readInline(scala.collection.immutable.Set.class);
       g.links_$eq(links);
+
+      var nextIdCounter = in.readInt();
+      g.nextIdCounter_$eq(nextIdCounter);
+
       return g;
     }
 
@@ -168,6 +172,7 @@ public final class PassPersistance {
     protected void writeObject(Graph obj, Output out) throws IOException {
       out.writeObject(obj.rootScope());
       out.writeInline(scala.collection.immutable.Set.class, obj.links());
+      out.writeInt(obj.nextIdCounter());
     }
 
     private static void assignParents(AliasAnalysis$Graph$Scope scope) {
diff --git a/engine/runtime-compiler/src/main/scala/org/enso/compiler/pass/analyse/AliasAnalysis.scala b/engine/runtime-compiler/src/main/scala/org/enso/compiler/pass/analyse/AliasAnalysis.scala
index 09867bb90e8..0f89ae6e4b9 100644
--- a/engine/runtime-compiler/src/main/scala/org/enso/compiler/pass/analyse/AliasAnalysis.scala
+++ b/engine/runtime-compiler/src/main/scala/org/enso/compiler/pass/analyse/AliasAnalysis.scala
@@ -69,7 +69,7 @@ import scala.reflect.ClassTag
   *
   * - A [[org.enso.compiler.pass.PassConfiguration]] containing an instance of
   *   [[AliasAnalysis.Configuration]].
-  * - A [[LocalScope]], where relevant.
+  * - A [[org.enso.compiler.context.LocalScope]], where relevant.
   */
 case object AliasAnalysis extends IRPass {
 
@@ -940,11 +940,10 @@ case object AliasAnalysis extends IRPass {
   sealed class Graph extends Serializable {
     var rootScope: Graph.Scope = new Graph.Scope()
     var links: Set[Graph.Link] = Set()
+    var nextIdCounter          = 0
 
     private var globalSymbols: Map[Graph.Symbol, Occurrence.Global] = Map()
 
-    private var nextIdCounter = 0
-
     /** @return a deep structural copy of `this` */
     def deepCopy(
       scope_mapping: mutable.Map[Scope, Scope] = mutable.Map()