diff --git a/testing/web-platform/meta/IndexedDB/interfaces.worker.js.ini b/testing/web-platform/meta/IndexedDB/interfaces.worker.js.ini
deleted file mode 100644
index 8a3a7443928a..000000000000
--- a/testing/web-platform/meta/IndexedDB/interfaces.worker.js.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[interfaces.worker]
-  type: testharness
-  [WorkerUtils interface: attribute indexedDB]
-    expected: FAIL
-
diff --git a/testing/web-platform/tests/IndexedDB/interfaces.worker.js b/testing/web-platform/tests/IndexedDB/interfaces.worker.js
index 5da0590bb29c..161acca34da3 100644
--- a/testing/web-platform/tests/IndexedDB/interfaces.worker.js
+++ b/testing/web-platform/tests/IndexedDB/interfaces.worker.js
@@ -11,13 +11,11 @@ request.onload = function() {
   var idls = request.responseText;
 
   idlArray.add_untested_idls("interface WorkerGlobalScope {};");
-  idlArray.add_untested_idls("interface WorkerUtils {};");
-  idlArray.add_untested_idls("WorkerGlobalScope implements WorkerUtils;");
   idlArray.add_untested_idls("interface Event { };");
   idlArray.add_untested_idls("interface EventTarget { };");
 
   // From Indexed DB:
-  idlArray.add_idls("WorkerUtils implements IDBEnvironment;");
+  idlArray.add_idls("WorkerGlobalScope implements IDBEnvironment;");
   idlArray.add_idls(idls);
 
   idlArray.add_objects({