diff --git a/index.bs b/index.bs
index 2a43625..fbd8121 100644
--- a/index.bs
+++ b/index.bs
@@ -598,8 +598,8 @@ conforming IDL fragments, as described in the Web IDL specification. [[!WEBIDL]]
       for=MediaSessionAction>togglemicrophone</a> or <a enum-value
       for=MediaSessionAction>togglecamera</a> <a>media session action</a>, user
       agent MUST first execute the corresponding {{MediaSessionActionHandler}},
-      and then execute the steps to <a>set MediaStreamTrack muted state</a> for
-      each related <a>MediaStreamTrack</a>.
+      and then, for each related  <a>MediaStreamTrack</a>, [=queue a task=] to
+      execute the steps to <a>set MediaStreamTrack muted state</a>.
     </p>
 
     <p class=note>