diff --git a/openwrt/etc/config/dhcp b/openwrt/etc/config/dhcp
index d186969..a17c0e9 100644
--- a/openwrt/etc/config/dhcp
+++ b/openwrt/etc/config/dhcp
@@ -5,6 +5,8 @@ config dnsmasq
 	option rebind_localhost '1'
 	option expandhosts '1'
 	option cachesize '1000'
+	# Must be larger than limits for interfaces.
+	option dhcpleasemax '1024'
 	option authoritative '1'
 	option readethers '1'
 	option leasefile '/tmp/dhcp.leases'