diff --git a/auto-l3/templates/kea.conf b/auto-l3/templates/kea.conf
index 3f694c4..8cb493f 100644
--- a/auto-l3/templates/kea.conf
+++ b/auto-l3/templates/kea.conf
@@ -156,7 +156,7 @@
 			// almost always needed for DHCP to do its job. If you omit it,
 			// clients won't be able to get addresses, unless there are
 			// host reservations defined for them.
-			"pools": [ { "pool": "fe80::8000:0:0:0/64" } ],
+			"pools": [ { "pool": "fe80::8000:0:0:0/65" } ],
 
 			// Kea supports prefix delegation (PD). This mechanism delegates
 			// whole prefixes, instead of single addresses. You need to specify