diff --git a/debian/changelog b/debian/changelog
index f91b848..98ac627 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -7,6 +7,8 @@ patroni (1.6.5-2) UNRELEASED; urgency=medium
     if specified.
   * debian/patroni@.service: Append scope to syslog identifier.
   * debian/pg_clonecluster_patroni: Pass $DATADIR variable to pg_createcluster.
+  * debian/config.yml.in: Add some comments about option passing for
+    pg_createcluster_patroni/pg_clonecluster_patroni.
 
  -- Debian PostgreSQL Maintainers <team+postgresql@tracker.debian.org>  Mon, 27 Apr 2020 18:25:04 +0200
 
diff --git a/debian/config.yml.in b/debian/config.yml.in
index d2db281..7a2c8cf 100644
--- a/debian/config.yml.in
+++ b/debian/config.yml.in
@@ -20,6 +20,8 @@ restapi:
 
 bootstrap:
   # Custom bootstrap method
+  # The options --scope= and --datadir= are passed to the custom script by
+  # patroni and passed on to pg_createcluster by pg_createcluster_patroni
   method: pg_createcluster
   pg_createcluster:
     command: /usr/share/patroni/pg_createcluster_patroni
@@ -81,6 +83,8 @@ bootstrap:
 
 postgresql:
   # Custom clone method
+  # The options --scope= and --datadir= are passed to the custom script by
+  # patroni and passed on to pg_createcluster by pg_clonecluster_patroni
   create_replica_method:
     - pg_clonecluster
   pg_clonecluster: