diff --git a/docs/install.md b/docs/install.md
index bc3a13a..f1a7469 100644
--- a/docs/install.md
+++ b/docs/install.md
@@ -1,20 +1,71 @@
 ## How to install and start MISP modules (in a Python virtualenv)?
 
 ~~~~bash
-sudo apt-get install python3-dev python3-pip libpq5 libjpeg-dev tesseract-ocr imagemagick ruby-pygments.rb
+sudo apt-get install python3-dev python3-pip libpq5 libjpeg-dev tesseract-ocr libpoppler-cpp-dev imagemagick virtualenv libopencv-dev zbar-tools libzbar0 libzbar-dev libfuzzy-dev
 # With virtualenv: sudo -u www-data virtualenv -p python3 /var/www/MISP/venv
 cd /usr/local/src/
 sudo git clone https://github.com/MISP/misp-modules.git
 cd misp-modules
-# With virtualenv: sudo -u www-data /var/www/MISP/venv/bin/pip install -I -r REQUIREMENTS
-# With virtualenv: sudo -u www-data /var/www/MISP/venv/bin/pip install .
-# Without virtualenv: pip install -I -r REQUIREMENTS
-# Without virtualenv: pip install .
-sudo gem install asciidoctor-pdf --pre
+
+# BEGIN with virtualenv: 
+sudo -u www-data /var/www/MISP/venv/bin/pip install -I -r REQUIREMENTS
+sudo -u www-data /var/www/MISP/venv/bin/pip install .
+# END with virtualenv
+
+# BEGIN without virtualenv: 
+pip install -I -r REQUIREMENTS
+pip install .
+# END without virtualenv
+
+# To start after reboot: 
 sudo sed -i -e '$i \sudo -u www-data /var/www/MISP/venv/bin/misp-modules -l 127.0.0.1 -s > /tmp/misp-modules_rc.local.log &\n' /etc/rc.local
+
+# Start the Module:
 /var/www/MISP/venv/bin/misp-modules -l 127.0.0.1 -s & #to start the modules
 ~~~~
 
+## How to install and start MISP modules on RHEL-based distributions ?
+
+As of this writing, the official RHEL repositories only contain Ruby 2.0.0 and Ruby 2.1 or higher is required. As such, this guide installs Ruby 2.2 from the SCL repository.
+
+~~~~bash
+sudo yum install rh-ruby22
+sudo yum install openjpeg-devel
+sudo yum install rubygem-rouge rubygem-asciidoctor zbar-devel opencv-devel gcc-c++ pkgconfig poppler-cpp-devel python-devel redhat-rpm-config
+cd /var/www/MISP
+git clone https://github.com/MISP/misp-modules.git
+cd misp-modules
+sudo -u apache /usr/bin/scl enable rh-python36 "virtualenv -p python3 /var/www/MISP/venv"
+sudo -u apache /var/www/MISP/venv/bin/pip install -U -I -r REQUIREMENTS
+sudo -u apache /var/www/MISP/venv/bin/pip install -U .
+~~~~
+
+Create the service file /etc/systemd/system/misp-modules.service :
+
+~~~~bash
+echo "[Unit]
+Description=MISP's modules
+After=misp-workers.service
+
+[Service]
+Type=simple
+User=apache
+Group=apache
+ExecStart=/usr/bin/scl enable rh-python36 rh-ruby22  '/var/www/MISP/venv/bin/misp-modules –l 127.0.0.1 –s'
+Restart=always
+RestartSec=10
+
+[Install]
+WantedBy=multi-user.target" | sudo tee /etc/systemd/system/misp-modules.service
+~~~~
+
+The After=misp-workers.service must be changed or removed if you have not created a misp-workers service. Then, enable the misp-modules service and start it:
+
+~~~~bash
+systemctl daemon-reload
+systemctl enable --now misp-modules
+~~~~
+
 ## How to use an MISP modules Docker container
 
 ### Docker run