diff --git a/src/actor.ts b/src/actor.ts
index 2cc484b..2a4ef53 100644
--- a/src/actor.ts
+++ b/src/actor.ts
@@ -108,15 +108,15 @@ export class Actor {
     readonly id = nextActorId++;
     readonly outbound: Map<Handle, Ref>;
     exitReason: ExitReason = null;
-    // readonly exitHooks: Array<LocalAction> = [];
+    readonly exitHooks: Array<LocalAction> = [];
 
     constructor(initialAssertions = new Map<Handle, Ref>()) {
         this.outbound = initialAssertions;
     }
 
-    // atExit(a: LocalAction): void {
-    //     this.exitHooks.push(a);
-    // }
+    atExit(a: LocalAction): void {
+        this.exitHooks.push(a);
+    }
 
     terminateWith(t: Turn, reason: Exclude<ExitReason, null>) {
         if (this.exitReason !== null) return;
@@ -124,7 +124,7 @@ export class Actor {
         if (!this.exitReason.ok) {
             console.error(`Actor ${this.id} crashed:`, this.exitReason.err);
         }
-        // this.exitHooks.forEach(hook => hook(t));
+        this.exitHooks.forEach(hook => hook(t));
         queueTask(() =>
             t.freshen(t =>
                 this.outbound.forEach((peer, h) => t._retract(peer, h))));