diff --git a/ssl/tls13_server.c b/ssl/tls13_server.c
index c498407..eb11738 100644
--- a/ssl/tls13_server.c
+++ b/ssl/tls13_server.c
@@ -491,7 +491,7 @@
                                                         SSL_HANDSHAKE *hs) {
   if (!ssl->s3->tmp.cert_request) {
     /* OpenSSL returns X509_V_OK when no certificates are requested. This is
-     * classed by them as a bug, but it's assumed by at least nginx. */
+     * classed by them as a bug, but it's assumed by at least NGINX. */
     ssl->verify_result = X509_V_OK;
     ssl->s3->new_session->verify_result = X509_V_OK;