diff --git a/docs/XEPs.md b/docs/XEPs.md
index 95282c6d4..1b9ea6afb 100644
--- a/docs/XEPs.md
+++ b/docs/XEPs.md
@@ -2,6 +2,7 @@
 * XEP-0030: Service Discovery
 * XEP-0045: Multi-User Chat
 * XEP-0048: Bookmarks
+* XEP-0085: Chat State Notifications
 * XEP-0092: Software Version
 * XEP-0115: Entity Capabilities
 * XEP-0163: Personal Eventing Protocol (avatars and nicks)