diff --git a/source/_docs/blueprint/selectors.markdown b/source/_docs/blueprint/selectors.markdown
index 9b56b713ddf..28b6fee89bf 100644
--- a/source/_docs/blueprint/selectors.markdown
+++ b/source/_docs/blueprint/selectors.markdown
@@ -16,6 +16,7 @@ blueprint easier to use from the UI.
 The following selectors are currently available:
 
 - [Action selector](#action-selector)
+- [Add-on selector](#add-on-selector)
 - [Area selector](#area-selector)
 - [Boolean selector](#boolean-selector)
 - [Device selector](#device-selector)
@@ -43,6 +44,23 @@ This selector does not have any other options; therefore, it only has its key.
 action:
 ```
 
+## Add-on selector
+
+This can only be used on an installation with a Supervisor. For installations
+that do not have that, an error will be displayed.
+
+The add-on selector allows the user to input an add-on slug.
+On the user interface, it will list all installed add-ons and use the slug of the
+selected add-on.
+
+![Screenshot of an Add-on selector](/images/blueprints/selector-addon.png)
+
+This selector does not have any other options; therefore, it only has its key.
+
+```yaml
+addon:
+```
+
 ## Area selector
 
 The area selector shows an area finder that can pick a single area. The value
diff --git a/source/images/blueprints/selector-addon.png b/source/images/blueprints/selector-addon.png
new file mode 100644
index 00000000000..e440ce95a03
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