diff --git a/lib/lib.dom.d.ts b/lib/lib.dom.d.ts
index ca3ce067a05b7..14bd2c71568ed 100644
--- a/lib/lib.dom.d.ts
+++ b/lib/lib.dom.d.ts
@@ -7477,6 +7477,10 @@ interface HTMLMediaElement extends HTMLElement {
      * Gets TimeRanges for the current media resource that has been played.
      */
     readonly played: TimeRanges;
+    /**
+     * Gets or sets a flag that indicate whether or not the browser should adjust the pitch of the audio to compensate for changes to the playback rate.
+     */
+    preservesPitch: boolean;
     /**
      * Gets or sets the current playback position, in seconds.
      */