diff --git a/Job-configuration.md b/Job-configuration.md
index 03d5c11..986079c 100644
--- a/Job-configuration.md
+++ b/Job-configuration.md
@@ -213,6 +213,8 @@ in the job config file.
 		- _stderr_ -- file to which error output will be redirected, can be
 		  omitted; job variables can be used, usually `${EVAL_DIR}`, has to
 		  be accessible inside sandbox
+		- _stderr-to-stdout_ -- true/false, if true then stderr will be
+		  redirected to stdout
 		- _output_ -- true/false, if true then output from stdout and stderr
 		  (in that order) will be written in `result.yaml`, limitation on
 		  length defined in worker configuration