diff --git a/README.md b/README.md
index c307e9c..da3ec0c 100644
--- a/README.md
+++ b/README.md
@@ -10,3 +10,7 @@ matplotlib plot. It will show the approximated b-spline with the given
 smoothing factor (6 above) and the map section of the given width (0.286 above)
 around that curve. The area will be split into sections (20 in the example)
 which will individually be transformed into rectangles which are also plotted.
+
+On Debian systems you need the following packages:
+
+	apt-get install python python-pil python-scipy python-tk python-matplotlib python-numpy