diff --git a/build/vnu-jar.js b/build/vnu-jar.js
index d6ba690738..d1002c0a91 100644
--- a/build/vnu-jar.js
+++ b/build/vnu-jar.js
@@ -27,7 +27,6 @@ childProcess.exec('java -version', (error, stdout, stderr) => {
     // Firefox's non-standard autocomplete behavior - see https://bugzilla.mozilla.org/show_bug.cgi?id=654072
     'Attribute “autocomplete” is only allowed when the input type is.*',
     'Attribute “autocomplete” not allowed on element “button” at this point.',
-    'Bad value “tablist” for attribute “role” on element “nav”.',
     // We use holder.js with `data-src` and no `src` to avoid 404 errors;
     // we could work around this, but I'm not sure it's worth it.
     'Element “img” is missing required attribute “src”.',
diff --git a/docs/4.0/components/navs.md b/docs/4.0/components/navs.md
index f0baa0707b..1a22b3bcff 100644
--- a/docs/4.0/components/navs.md
+++ b/docs/4.0/components/navs.md
@@ -347,13 +347,15 @@ Note that dynamic tabbed interfaces should <em>not</em> contain dropdown menus,
 </div>
 {% endhighlight %}
 
-To help fit your needs, this works with `<ul>`-based markup, as shown above, as well as `<nav>`-based markup shown below.
+To help fit your needs, this works with `<ul>`-based markup, as shown above, or with any arbitrary "roll your own" markup. Note that if you're using `<nav>`, you shouldn't add `role="tablist"` directly to it, as this would override the element's native role as a navigation landmark. Instead, switch to an alternative element (in the exammple below, a simple `<div>`) and wrap the `<nav>` around it.
 
 <div class="bd-example bd-example-tabs">
-  <nav class="nav nav-tabs" id="nav-tab" role="tablist">
-    <a class="nav-item nav-link active" id="nav-home-tab" data-toggle="tab" href="#nav-home" role="tab" aria-controls="nav-home" aria-selected="true">Home</a>
-    <a class="nav-item nav-link" id="nav-profile-tab" data-toggle="tab" href="#nav-profile" role="tab" aria-controls="nav-profile" aria-selected="false">Profile</a>
-    <a class="nav-item nav-link" id="nav-contact-tab" data-toggle="tab" href="#nav-contact" role="tab" aria-controls="nav-contact" aria-selected="false">Contact</a>
+  <nav>
+    <div class="nav nav-tabs" id="nav-tab" role="tablist">
+      <a class="nav-item nav-link active" id="nav-home-tab" data-toggle="tab" href="#nav-home" role="tab" aria-controls="nav-home" aria-selected="true">Home</a>
+      <a class="nav-item nav-link" id="nav-profile-tab" data-toggle="tab" href="#nav-profile" role="tab" aria-controls="nav-profile" aria-selected="false">Profile</a>
+      <a class="nav-item nav-link" id="nav-contact-tab" data-toggle="tab" href="#nav-contact" role="tab" aria-controls="nav-contact" aria-selected="false">Contact</a>
+    </div>
   </nav>
   <div class="tab-content" id="nav-tabContent">
     <div class="tab-pane fade show active" id="nav-home" role="tabpanel" aria-labelledby="nav-home-tab">
@@ -369,10 +371,12 @@ To help fit your needs, this works with `<ul>`-based markup, as shown above, as
 </div>
 
 {% highlight html %}
-<nav class="nav nav-tabs" id="myTab" role="tablist">
-  <a class="nav-item nav-link active" id="nav-home-tab" data-toggle="tab" href="#nav-home" role="tab" aria-controls="nav-home" aria-selected="true">Home</a>
-  <a class="nav-item nav-link" id="nav-profile-tab" data-toggle="tab" href="#nav-profile" role="tab" aria-controls="nav-profile" aria-selected="false">Profile</a>
-  <a class="nav-item nav-link" id="nav-contact-tab" data-toggle="tab" href="#nav-contact" role="tab" aria-controls="nav-contact" aria-selected="false">Contact</a>
+<nav>
+  <div class="nav nav-tabs" id="nav-tab" role="tablist">
+    <a class="nav-item nav-link active" id="nav-home-tab" data-toggle="tab" href="#nav-home" role="tab" aria-controls="nav-home" aria-selected="true">Home</a>
+    <a class="nav-item nav-link" id="nav-profile-tab" data-toggle="tab" href="#nav-profile" role="tab" aria-controls="nav-profile" aria-selected="false">Profile</a>
+    <a class="nav-item nav-link" id="nav-contact-tab" data-toggle="tab" href="#nav-contact" role="tab" aria-controls="nav-contact" aria-selected="false">Contact</a>
+  </div>
 </nav>
 <div class="tab-content" id="nav-tabContent">
   <div class="tab-pane fade show active" id="nav-home" role="tabpanel" aria-labelledby="nav-home-tab">...</div>