diff --git a/README.md b/README.md
index 829f3c8447e10ac52da557d082f7598efd1b2af4..938f1fdb50e531c2b1f090c598e957fc6616607f 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,7 @@ shell scripts.
  * `libiberty-dev`
  * `libcppunit-dev`
  * `libtclap-dev`
+ * `libxml2-dev`
  * `doxygen` (optional for documentation generation)
  * `graphviz` (optional for documentation generation and automata
 visualizations)