--- a/doc/book/en/C011-installation.en.txt	Mon Dec 22 19:10:38 2008 +0100
+++ b/doc/book/en/C011-installation.en.txt	Mon Dec 22 12:00:00 2008 -0800
@@ -31,7 +31,10 @@
 
 You can now install the required packages with the following command: ::
 
-  apt-get update ; apt-get install cubicweb
+  apt-get update 
+  apt-get install cubicweb
+  apt-get install cubicweb-dev
+
 
 This is it!