diff --git a/packages/core/src/generators/metadata/maps/mdn.json b/packages/core/src/generators/metadata/maps/mdn.json
index f27807cd6..7e0d1b179 100644
--- a/packages/core/src/generators/metadata/maps/mdn.json
+++ b/packages/core/src/generators/metadata/maps/mdn.json
@@ -579,6 +579,7 @@
   "paymentrequestupdateevent": "https://developer.mozilla.org/docs/Web/API/PaymentRequestUpdateEvent",
   "paymentresponse": "https://developer.mozilla.org/docs/Web/API/PaymentResponse",
   "performance": "https://developer.mozilla.org/docs/Web/API/Window/performance",
+  "performancecontainertiming": "https://developer.mozilla.org/docs/Web/API/PerformanceContainerTiming",
   "performanceelementtiming": "https://developer.mozilla.org/docs/Web/API/PerformanceElementTiming",
   "performanceentry": "https://developer.mozilla.org/docs/Web/API/PerformanceEntry",
   "performanceeventtiming": "https://developer.mozilla.org/docs/Web/API/PerformanceEventTiming",