diff --git a/ssl/tls13_server.c b/ssl/tls13_server.c
index 1b99ff6..71c716d 100644
--- a/ssl/tls13_server.c
+++ b/ssl/tls13_server.c
@@ -458,8 +458,11 @@
     return ssl_hs_ok;
   }
 
+  const int allow_anonymous =
+      (ssl->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT) == 0;
+
   if (!tls13_check_message_type(ssl, SSL3_MT_CERTIFICATE) ||
-      !tls13_process_certificate(ssl) ||
+      !tls13_process_certificate(ssl, allow_anonymous) ||
       !ssl->method->hash_current_message(ssl)) {
     return ssl_hs_error;
   }