diff --git a/.dir-locals.el b/.dir-locals.el
index 170a417..3d27d64 100644
--- a/.dir-locals.el
+++ b/.dir-locals.el
@@ -2,4 +2,4 @@
 ;;; See Info node `(emacs) Directory Variables' for more information.
 
 ((nil
-  (compile-command . "ant -e clean dist package")))
+  (compile-command . "ant -e -lib /usr/share/java/jdeb.jar clean dist package")))
diff --git a/README.org b/README.org
index 3b38d44..4028d4f 100644
--- a/README.org
+++ b/README.org
@@ -12,7 +12,7 @@ offers translating text into braille using [[http://www.liblouis.org][liblouis]]
 * Build
 
 #+BEGIN_SRC shell
-ant -e clean dist package
+ant -e -lib /usr/share/java/jdeb.jar clean dist package
 #+END_SRC
 
 * Usage of command line tools