diff --git a/Job-configuration.md b/Job-configuration.md
index ca273c0..37fe9ce 100644
--- a/Job-configuration.md
+++ b/Job-configuration.md
@@ -115,6 +115,7 @@ test will fail anyway.
 - **Truncate task** cuts off data from the end of a file so that it fits a limit
   supplied as an argument. This is done in place, using
   [boost::filesystem::resize_file](http://www.boost.org/doc/libs/1_60_0/libs/filesystem/doc/reference.html#resize_file).
+- **Exists task** is simple task which checks if given paths exists. Arbitrary number of arguments can be given and all of them are going to be checked on existance.
 
 ### External tasks