diff --git a/pps_wiki/installation.md b/pps_wiki/installation.md
index 7fe9775fb7e28bab40ecc444eec30e16344885b5..3030d1a9a730dbbe8cd29b4e760e582f5bb89def 100644
--- a/pps_wiki/installation.md
+++ b/pps_wiki/installation.md
@@ -29,9 +29,12 @@ Add a new line in the ``/etc/hosts`` file that links the teacher's IP with the d
 - USB Crazyradio: <br />
 To set up the crazyradio USB dongle just copy the rule files ``99-crazyflie.rules`` and ``99-crazyradio.rules`` to the directory ``/etc/udev/rules.d``.
 You also have to install the library pyusb:
+```
 sudo apt-get update
 sudo apt-get install python-pip
 sudo pip install pyusb
+
+```
 - Source scripts in ``.bashrc``: <br />
 You need to source the following scripts in the ``.bashrc`` file:
   - the ROS setup script: ``/opt/ros/kinetic/setup.bash``