diff --git a/test/unit/data/cacheable-object.js b/test/unit/data/cacheable-object.js
index 8c31a5bc5..4b9272481 100644
--- a/test/unit/data/cacheable-object.js
+++ b/test/unit/data/cacheable-object.js
@@ -4,7 +4,7 @@ import CacheableObject from '#cacheable-object';
 
 function newCacheableObject(PD) {
   return new (class extends CacheableObject {
-    static propertyDescriptors = PD;
+    static [CacheableObject.propertyDescriptors] = PD;
   });
 }