diff --git a/doc/Extensions/RRDCached.md b/doc/Extensions/RRDCached.md
index 1ed05ba2b8..ca1d029483 100644
--- a/doc/Extensions/RRDCached.md
+++ b/doc/Extensions/RRDCached.md
@@ -32,6 +32,24 @@ Features: Supported features in the version indicated.
 | >=1.5.5 | No        | G,C,U    |
 | >=1.6.x | No        | G,C,U    |
 
+### RRDCached installation Debian Jessie (rrdcached 1.4.8)
+```ssh
+sudo apt-get install rrdcached
+```
+
+- Edit /opt/librenms/config.php to include:
+```php
+$config['rrdcached']    = "unix:/var/run/rrdcached.sock";
+```
+- Edit /etc/default/rrdcached to include:
+```ssh
+OPTS="-s librenms"
+OPTS="$OPTS -l unix:/var/run/rrdcached.sock"
+OPTS="$OPTS -j /var/lib/rrdcached/journal/ -F"
+OPTS="$OPTS -b /opt/librenms/rrd/ -B"
+OPTS="$OPTS -w 1800 -z 1800 -f 3600 -t 4"
+```
+
 ### RRDCached installation Ubuntu 16
 ```ssh
 sudo apt-get install rrdcached