diff --git a/README.rst b/README.rst
index dfd5a50d5..2db757c98 100644
--- a/README.rst
+++ b/README.rst
@@ -56,6 +56,19 @@ Development Environment Installation
 
 * Either run ``./manage.py migrate`` (for an empty database) or restore a database dump.
 
+* In sapl/sapl directory create one file called ``.env``. Write the following attribuitions
+in it:
+
+DATABASE_URL = postgresql://USER:PASSWORD@HOST:PORT/NAME
+SECRET_KEY = Generate some key and paste here. You generate it using the link below.
+DEBUG = [True/False]
+EMAIL_USE_TLS = [True/False]
+EMAIL_PORT = [Set this parameter]
+EMAIL_HOST = [Set this parameter]
+EMAIL_HOST_USER = [Set this parameter]
+EMAIL_HOST_PASSWORD = [Set this parameter]
+
+`Generate your secret key here <https://docs.djangoproject.com/es/1.9/ref/settings/#std:setting-SECRET_KEY>`
 
 Instructions for Translators
 ============================