diff --git a/Job-configuration.md b/Job-configuration.md
index 986079c..b85859f 100644
--- a/Job-configuration.md
+++ b/Job-configuration.md
@@ -218,6 +218,14 @@ in the job config file.
 		- _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
+		- _carboncopy-stdout_ -- file to which standard output will be copied,
+		  path has to be outside sandbox; job variables can be used, usually
+		  used for debug copying into results directory (can start with
+		  `${RESULT_DIR}`)
+		- _carboncopy-stderr_ -- file to which error output will be copied,
+		  path has to be outside sandbox; job variables can be used, usually
+		  used for debug copying into results directory (can start with
+		  `${RESULT_DIR}`)
 		- _chdir_ -- this will be working directory of executed application
 		- _working-directory_ -- directory outside sandbox relative to the
 		  sources directory which will be used as the one bound to the default