diff --git a/app/ecs/ecs.js b/app/ecs/ecs.js
index 06cf13d..70b4744 100644
--- a/app/ecs/ecs.js
+++ b/app/ecs/ecs.js
@@ -323,7 +323,7 @@ export default class Ecs {
     for (const componentName in removing) {
       this.Components[componentName].destroyMany(removing[componentName]);
     }
-    this.reindex(unique.values());
+    this.reindex(unique);
   }
 
   static serialize(ecs, view) {