diff --git a/include/mbedtls/platform.h b/include/mbedtls/platform.h
index 25b5d21..35010f8 100644
--- a/include/mbedtls/platform.h
+++ b/include/mbedtls/platform.h
@@ -326,8 +326,6 @@
  *
  * \param   ctx     mbed TLS context
  *
- * \return  0 if successful
- *
  * \note    This function should be called after every other mbed TLS module has
  *          been correctly freed using the appropriate free function.
  *          Its implementation is platform specific, and by default, unless
diff --git a/library/version_features.c b/library/version_features.c
index 9f97c7b..bb172f2 100644
--- a/library/version_features.c
+++ b/library/version_features.c
@@ -69,6 +69,9 @@
 #if defined(MBEDTLS_PLATFORM_NV_SEED_ALT)
     "MBEDTLS_PLATFORM_NV_SEED_ALT",
 #endif /* MBEDTLS_PLATFORM_NV_SEED_ALT */
+#if defined(MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT)
+    "MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT",
+#endif /* MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT */
 #if defined(MBEDTLS_DEPRECATED_WARNING)
     "MBEDTLS_DEPRECATED_WARNING",
 #endif /* MBEDTLS_DEPRECATED_WARNING */