diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index b62e2ac..1e7d9a3 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -4822,7 +4822,7 @@
             else
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
                 conf->sig_algs = ssl_preset_suiteb_sig_algs;
-#endif
+#endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
 
 #if defined(MBEDTLS_ECP_C) && !defined(MBEDTLS_DEPRECATED_REMOVED)
             conf->curve_list = NULL;