diff --git a/etc/nginx/include.d/generic_worker.conf b/etc/nginx/include.d/generic_worker.conf
index 9c698c7..2295670 100644
--- a/etc/nginx/include.d/generic_worker.conf
+++ b/etc/nginx/include.d/generic_worker.conf
@@ -1,4 +1,10 @@
 # Generic Worker
+#
+# note:
+# http://localhost:8083  -> matrix-synchrotron-balancer
+# generic_worker_lc      -> upstream_proxy (least_conn)
+# generic_worker_ih      -> upstream_proxy (ip_hash)
+#
 
 ## Sync requests
 location ~* ^/_matrix/client/(v2_alpha|r0)/sync$ {