diff --git a/.vuepress/docs-sidebar.js b/.vuepress/docs-sidebar.js
index caa42ff063..8c6047c393 100644
--- a/.vuepress/docs-sidebar.js
+++ b/.vuepress/docs-sidebar.js
@@ -66,8 +66,10 @@ module.exports = [
       'concepts/things',
       'concepts/items',
       'concepts/discovery',
+      'concepts/categories',
       'concepts/audio',
       'concepts/units-of-measurement',
+      'concepts/profiles',
       'concepts/rules',
     ]
   },
diff --git a/concepts/categories.md b/concepts/categories.md
index e8fa5d55e0..1f65587da4 100644
--- a/concepts/categories.md
+++ b/concepts/categories.md
@@ -6,6 +6,7 @@ title: Categories
 # Categories
 
 Categories in openHAB are used to provide meta information about Things, Channels, etc. UIs can use this information to render specific icons or provide a search functionality to for example filter all Things for a certain category.
+Categories should not be changed dynamically via Rules.
 
 ## Differences between categories