diff --git a/docker-compose.yml b/docker-compose.yml
index 79ddcbb..be7d264 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -248,6 +248,7 @@ services:
     volumes:
       - kopanossl/:/kopano/ssl
       - kopanosocket/:/run/kopano
+      # TODO move WebApp sessions into a dedicated volume
     environment:
       - TZ=${TZ}
       - ADDITIONAL_KOPANO_WEBAPP_PLUGINS=${ADDITIONAL_KOPANO_WEBAPP_PLUGINS}