diff --git a/components/script/dom/webidls/DedicatedWorkerGlobalScope.webidl b/components/script/dom/webidls/DedicatedWorkerGlobalScope.webidl
index 623288f0ffe..cd0d393e22e 100644
--- a/components/script/dom/webidls/DedicatedWorkerGlobalScope.webidl
+++ b/components/script/dom/webidls/DedicatedWorkerGlobalScope.webidl
@@ -3,7 +3,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 // https://html.spec.whatwg.org/multipage/#dedicatedworkerglobalscope
-[Global=(Worker,DedicatedWorker)]
+[Global=(Worker,DedicatedWorker), Exposed=DedicatedWorker]
 /*sealed*/ interface DedicatedWorkerGlobalScope : WorkerGlobalScope {
   [Throws]
   void postMessage(any message/*, optional sequence<Transferable> transfer*/);
diff --git a/tests/wpt/metadata/html/dom/interfaces.html.ini b/tests/wpt/metadata/html/dom/interfaces.html.ini
index 712c6a1f1c4..4d393ec05be 100644
--- a/tests/wpt/metadata/html/dom/interfaces.html.ini
+++ b/tests/wpt/metadata/html/dom/interfaces.html.ini
@@ -9687,9 +9687,6 @@
   [WorkerGlobalScope interface: existence and properties of interface object]
     expected: FAIL
 
-  [DedicatedWorkerGlobalScope interface: existence and properties of interface object]
-    expected: FAIL
-
   [WorkerNavigator interface: existence and properties of interface object]
     expected: FAIL
 
diff --git a/tests/wpt/mozilla/tests/mozilla/interfaces.html b/tests/wpt/mozilla/tests/mozilla/interfaces.html
index 9ccdbe882ec..245b8963737 100644
--- a/tests/wpt/mozilla/tests/mozilla/interfaces.html
+++ b/tests/wpt/mozilla/tests/mozilla/interfaces.html
@@ -29,7 +29,6 @@ test_interfaces([
   "Comment",
   "Console",
   "CustomEvent",
-  "DedicatedWorkerGlobalScope", // #2823
   "Document",
   "DocumentFragment",
   "DocumentType",