diff --git a/group_vars/all.yml.sample b/group_vars/all.yml.sample
index b62b9ef58..b99774cd3 100644
--- a/group_vars/all.yml.sample
+++ b/group_vars/all.yml.sample
@@ -257,6 +257,7 @@ dummy:
 #
 # You must define either monitor_interface or monitor_address. Preference
 # will go to monitor_interface if both are defined.
+# To use an IPv6 address, use the monitor_address setting instead (and set ip_version to ipv6)
 #monitor_interface: interface
 #monitor_address: 0.0.0.0
 # set to either ipv4 or ipv6, whichever your network is using
diff --git a/roles/ceph-common/defaults/main.yml b/roles/ceph-common/defaults/main.yml
index 244e612c0..d43fb7b31 100644
--- a/roles/ceph-common/defaults/main.yml
+++ b/roles/ceph-common/defaults/main.yml
@@ -249,6 +249,7 @@ rbd_client_admin_socket_path: /var/run/ceph # must be writable by QEMU and allow
 #
 # You must define either monitor_interface or monitor_address. Preference
 # will go to monitor_interface if both are defined.
+# To use an IPv6 address, use the monitor_address setting instead (and set ip_version to ipv6)
 monitor_interface: interface
 monitor_address: 0.0.0.0
 # set to either ipv4 or ipv6, whichever your network is using