diff --git a/obsolete-buildroot/sources/openwrt/root/etc/dnsmasq.conf b/obsolete-buildroot/sources/openwrt/root/etc/dnsmasq.conf
index eb88062b40..293edc600a 100644
--- a/obsolete-buildroot/sources/openwrt/root/etc/dnsmasq.conf
+++ b/obsolete-buildroot/sources/openwrt/root/etc/dnsmasq.conf
@@ -15,7 +15,8 @@ dhcp-authoritative
 dhcp-range=192.168.1.100,192.168.1.250,255.255.255.0,12h
 dhcp-leasefile=/tmp/dhcp.leases
 
-# allow a /etc/ethers for static hosts
+# use /etc/ethers for static hosts; same format as --dhcp-host
+# <hwaddr> [<hostname>] <ipaddr>
 read-ethers
 
 # other useful options: