diff --git a/draft-ietf-lamps-kyber-certificates.md b/draft-ietf-lamps-kyber-certificates.md
index f29cb33..bdad121 100644
--- a/draft-ietf-lamps-kyber-certificates.md
+++ b/draft-ietf-lamps-kyber-certificates.md
@@ -780,7 +780,7 @@ public key in the previous section signed with the ML-DSA-65 private key
 from {{I-D.lamps-dilithium-certificates}}.
 
 ~~~
-{::include ./example/ML-KEM-768.pem}
+{::include ./example/ML-KEM-768.crt}
 ~~~
 
 ~~~