diff --git a/group_vars/all.yml.sample b/group_vars/all.yml.sample
index 150dc0f58..280d3b4c0 100644
--- a/group_vars/all.yml.sample
+++ b/group_vars/all.yml.sample
@@ -249,6 +249,7 @@ 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 fbb1fb641..d64009490 100644
--- a/roles/ceph-common/defaults/main.yml
+++ b/roles/ceph-common/defaults/main.yml
@@ -241,6 +241,7 @@ 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