diff --git a/packages/core/src/runtime/actor.ts b/packages/core/src/runtime/actor.ts
index ec3bbc8..71f5b25 100644
--- a/packages/core/src/runtime/actor.ts
+++ b/packages/core/src/runtime/actor.ts
@@ -237,12 +237,18 @@ export class Facet {
         });
     }
 
-    idChain(): string {
-        let facetIds = [];
+    idChainValues(): AnyValue[] {
+        let pieces = [];
         for (let f: Facet | null = this; f !== null; f = f.parent) {
-            facetIds.push(f.id);
+            pieces.push(f.id);
         }
-        return facetIds.reverse().join(':') + ':' + stringify(this.actor.name);
+        pieces.push(this.actor.name);
+        pieces.reverse();
+        return pieces;
+    }
+
+    idChain(): string {
+        return this.idChainValues().map(v => stringify(v)).join(':');
     }
 
     toString(): string {