diff --git a/book/source/adv/certificates.md b/book/source/adv/certificates.md
index 900ee24..1d426f2 100644
--- a/book/source/adv/certificates.md
+++ b/book/source/adv/certificates.md
@@ -309,8 +309,6 @@ Some OpenPGP software may add User IDs to a certificate, which are not bound to
 Sequoia additionally certifies these "local, third party, User IDs" with a local trust anchor to facilitate local authentication decisions.
 To prevent accidental publication of these local User IDs (e.g. to public keyservers), Sequoia marks these binding signatures as "local" artifacts using [Exportable Certification](https://www.ietf.org/archive/id/draft-ietf-openpgp-crypto-refresh-12.html#name-exportable-certification) subpackets to mark them as non-exportable.
 
-(certificate-distribution)=
-
 (keyserver-flooding)=
 ## Third-party certification flooding