diff --git a/vars/raspbian-9.yml b/vars/raspbian-9.yml
index e33bf0e0c..d4188f68c 100644
--- a/vars/raspbian-9.yml
+++ b/vars/raspbian-9.yml
@@ -5,9 +5,12 @@ is_raspbian_9: True
 is_rpi: True
 rtc_id: ds3231
 
+# 2019-01-31: These apply if-only-if named_install and/or dhcpd_install are True
+# (This is quite rare now that vars/default_vars.yml sets dnsmasq_install: True)
 dns_service: bind9
 dns_user: bind
 dhcp_service: isc-dhcp-server
+
 proxy: squid
 proxy_user: proxy
 apache_service: apache2