diff --git a/docs/30_Configuration/60_File_env.md b/docs/30_Configuration/60_File_env.md
index 715afa64d0c30f61eb232462a3d9fb4d46e4cfd5..e977c8ba5b40722c1f3545198759a9905d51cc38 100644
--- a/docs/30_Configuration/60_File_env.md
+++ b/docs/30_Configuration/60_File_env.md
@@ -3,6 +3,8 @@ Here you can set custom environment variables.
 
 A common usage is extending the variable PATH to execute binaries that are not located in any directory.
 
+WIP: Or you can override used parameters during backup. The parameters for mysqldump are in env_defaults. If you want to change them then put ``LD_MYSQL_DUMP_PARAMS=...`` into env file.
+
 Example:
 
 This might be helpful on MS Windows. If you put the restic binary "somewhere" eg. c:\portable\restic\restic.exe then you can add the path to the env file: