diff --git a/ChangeLog.md b/ChangeLog.md
index f96ed8e0..2b9d079e 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -36,6 +36,7 @@ and [by Yandex](https://translated.turbopages.org/proxy_u/ru-en.en/https/gitflic
  - Добавление в C++ API забытого исключения `mdbx::duplicated_lck_file`.
  - Обновление патча для старых версий buildroot.
  - Использование в API `const MDBX_txn` где это возможно.
+ - Удаление устаревшего упоминания `MDBX_EAGAIN`.
 
 
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diff --git a/mdbx.h b/mdbx.h
index a5457829..abaa303f 100644
--- a/mdbx.h
+++ b/mdbx.h
@@ -2352,7 +2352,6 @@ LIBMDBX_API int mdbx_env_get_option(const MDBX_env *env,
  *                            doesn't exist.
  * \retval MDBX_EACCES        The user didn't have permission to access
  *                            the environment files.
- * \retval MDBX_EAGAIN        The environment was locked by another process.
  * \retval MDBX_BUSY          The \ref MDBX_EXCLUSIVE flag was specified and the
  *                            environment is in use by another process,
  *                            or the current process tries to open environment