diff --git a/dnsapi.md b/dnsapi.md
index ad18d00..8c5c2c1 100644
--- a/dnsapi.md
+++ b/dnsapi.md
@@ -47,7 +47,8 @@ If your DNS provider doesn't provide API access, you can use our [DNS alias mode
 * [47. Use Euserv.eu API](#dns_euserv)
 * [48. Use DNSPod.com domain API to automatically issue cert](#dns_dpi)
 * [49. Use Google Cloud DNS API to automatically issue cert](#dns_gcloud)
-* [50. Use ConoHa API](#dns_netcup)
+* [50. Use ConoHa API](#dns_conoha)
+* [51. Use Netcup API](#dns_netcup)
 * [53. Use Namecheap](#dns_namecheap)
 * [54. Use MyDNS.JP API](#dns_mydnsjp)
 * [55. Use hosting.de API](#dns_hostingde)