diff --git a/ReadMe.md b/ReadMe.md
index a9a5fd8c700952bc9aefe1a72696f0664525ae3f..91bc90ba4657e184fee90dbccbd42bd0be49d730 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -28,6 +28,7 @@ This package requires of the following system libraries and packages
 * [cmake](https://www.cmake.org "CMake's Homepage"), a cross-platform build system.
 * [doxygen](http://www.doxygen.org "Doxygen's Homepage") and [graphviz](http://www.graphviz.org "Graphviz's Homepage") to generate the documentation.
 * stdc++ and pthread libraries.
+* xsdcxx, W3C XML Schema to C++ Compiler
 
 Under linux all of these utilities are available in ready-to-use packages.