diff --git a/bin/named/server.c b/bin/named/server.c
index ba3b8362f8..f129cfb5ac 100644
--- a/bin/named/server.c
+++ b/bin/named/server.c
@@ -393,6 +393,7 @@ configure_server_acl(dns_c_ctx_t *cctx, dns_aclconfctx_t *actx, isc_mem_t *mctx,
 		if (result != DNS_R_SUCCESS)
 			ns_server_fatal(NS_LOGMODULE_SERVER, ISC_FALSE,
 					"server ACL setup failed");
+		dns_c_ipmatchlist_detach(&cacl);
 	}
 }