diff --git a/lib/client.js b/lib/client.js
index 78c3801..8afe44f 100644
--- a/lib/client.js
+++ b/lib/client.js
@@ -21,6 +21,7 @@ const permanentCaps = [
 	"draft/account-registration",
 	"draft/chathistory",
 	"draft/extended-monitor",
+	"draft/read-marker",
 
 	"soju.im/bouncer-networks",
 	"soju.im/read",