diff --git a/include/mbedtls/mbedtls_config.h b/include/mbedtls/mbedtls_config.h
index 40e16e108a..d5a488341d 100644
--- a/include/mbedtls/mbedtls_config.h
+++ b/include/mbedtls/mbedtls_config.h
@@ -737,7 +737,7 @@
  */
 //#define MBEDTLS_SSL_RECORD_SIZE_LIMIT
 
-/*
+/**
  * \def MBEDTLS_SSL_KEYING_MATERIAL_EXPORT
  *
  * When this option is enabled, the client and server can extract additional