diff --git a/app/assets/javascripts/discourse/lib/plugin-api.js.es6 b/app/assets/javascripts/discourse/lib/plugin-api.js.es6
index cfff459ed9..6c20b968f5 100644
--- a/app/assets/javascripts/discourse/lib/plugin-api.js.es6
+++ b/app/assets/javascripts/discourse/lib/plugin-api.js.es6
@@ -668,6 +668,18 @@ class PluginApi {
    *   displayName: "Discourse"
    *   href: "https://www.discourse.org",
    * })
+   *
+   * An optional `customFilter` callback can be included to not display the
+   * nav item on certain routes
+   *
+   * Example:
+   *
+   * addNavigationBarItem({
+   *   name: "link-to-bugs-category",
+   *   displayName: "bugs"
+   *   href: "/c/bugs",
+   *   customFilter: (category, args) => { category && category.get('name') !== 'bug' }
+   * })
    */
   addNavigationBarItem(item) {
     if (!item["name"]) {
diff --git a/app/assets/javascripts/discourse/models/nav-item.js.es6 b/app/assets/javascripts/discourse/models/nav-item.js.es6
index 4587183ed6..e6ad1f9102 100644
--- a/app/assets/javascripts/discourse/models/nav-item.js.es6
+++ b/app/assets/javascripts/discourse/models/nav-item.js.es6
@@ -102,7 +102,8 @@ const NavItem = Discourse.Model.extend({
 });
 
 const ExtraNavItem = NavItem.extend({
-  @computed("href") href: href => href
+  @computed("href") href: href => href,
+  customFilter: null
 });
 
 NavItem.reopenClass({
@@ -169,7 +170,11 @@ NavItem.reopenClass({
         i => i !== null && !(category && i.get("name").indexOf("categor") === 0)
       );
 
-    return items.concat(NavItem.extraNavItems);
+    const extraItems = NavItem.extraNavItems.filter(item => {
+      return item.customFilter && item.customFilter.call(this, category, args);
+    });
+
+    return items.concat(extraItems);
   }
 });