diff --git a/package/network/services/dnsmasq/files/dhcp.conf b/package/network/services/dnsmasq/files/dhcp.conf
index ec8b1ae950..d5b9dfa018 100644
--- a/package/network/services/dnsmasq/files/dhcp.conf
+++ b/package/network/services/dnsmasq/files/dhcp.conf
@@ -10,6 +10,7 @@ config dnsmasq
 	option domain	'lan'
 	option expandhosts	1
 	option nonegcache	0
+	option cachesize	1000
 	option authoritative	1
 	option readethers	1
 	option leasefile	'/tmp/dhcp.leases'