diff --git a/include/mbedtls/ssl.h b/include/mbedtls/ssl.h
index 219d820..6ae85d9 100644
--- a/include/mbedtls/ssl.h
+++ b/include/mbedtls/ssl.h
@@ -1450,7 +1450,7 @@
     const int *MBEDTLS_PRIVATE(sig_hashes);         /*!< allowed signature hashes           */
 #endif
     const uint16_t *MBEDTLS_PRIVATE(sig_algs);      /*!< allowed signature algorithms       */
-#endif
+#endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
 
 #if defined(MBEDTLS_ECP_C) && !defined(MBEDTLS_DEPRECATED_REMOVED)
     const mbedtls_ecp_group_id *MBEDTLS_PRIVATE(curve_list); /*!< allowed curves             */