diff --git a/developer_manual/general/devenv.rst b/developer_manual/general/devenv.rst
index 9ad42488f..451801d53 100644
--- a/developer_manual/general/devenv.rst
+++ b/developer_manual/general/devenv.rst
@@ -47,10 +47,15 @@ The following commands are using **/var/www** as the web server's directory and
 
 .. note:: Python 3.4 includes pip by default
 
-Install the development tool (**depends on Python 3 and python3-pip**)::
+Install the `development tool <https://github.com/Raydiation/ocdev#owncloud-developer-tools>`_ (**depends on Python >=3.3 and python3-pip**)
+
+.. note:: If you are using a Linux distribution which only provides a smaller Python version than 3.3, for example **Ubuntu 12.04**, you need to install **python3-jinja2** from your package manager first since the newest Jinja version is incompatible with Python 3.2!
+
+::
 
   sudo pip3 install ocdev
 
+
 Make the directory writable::
 
   sudo chmod o+rw /var/www