diff --git a/Worker.md b/Worker.md
index 47411cb..ba4bf18 100644
--- a/Worker.md
+++ b/Worker.md
@@ -46,8 +46,9 @@ the worker run or whether it measures time precisely.
 This information is sent to the broker on startup using the `init` command.
 
 ## Architecture
-Picture below is overall internal architecture of worker which shows its defined classes with private variables and public functions. Vector version of this picture is available [here](https://github.com/ReCodEx/wiki/raw/master/images/Worker_Internal_Architecture.pdf).
+Picture below is internal architecture of worker which shows its defined classes with private variables and public functions.
 ![Internal Worker architecture](https://github.com/ReCodEx/wiki/blob/master/images/Worker_Internal_Architecture.png)
+![Worker class diagram](https://rawgit.com/ReCodEx/wiki/master/images/worker_class_diagram.svg)
 
 ## Installation