diff --git a/source/_integrations/slack.markdown b/source/_integrations/slack.markdown
index 242968d61ac..31d7f0d08d4 100644
--- a/source/_integrations/slack.markdown
+++ b/source/_integrations/slack.markdown
@@ -12,6 +12,7 @@ ha_codeowners:
   - '@tkdrob'
 ha_platforms:
   - notify
+  - sensor
 ha_integration_type: service
 ---
 
@@ -53,6 +54,10 @@ The added `notify` service will be named after the chat server the app is instal
 
 {% include integrations/config_flow.md %}
 
+One sensor entity will be created:
+
+- **Do Not Disturb Timer**: The amount of time left for Do Not Disturb status.
+
 ### Slack Service Data
 
 The following attributes can be placed inside the `data` key of the service call for extended functionality: