diff --git a/docs/GettingStarted.rst b/docs/GettingStarted.rst
index 10f0421676..0deede6cdc 100644
--- a/docs/GettingStarted.rst
+++ b/docs/GettingStarted.rst
@@ -89,6 +89,7 @@ In the heat directory, run the install script::
     sudo install etc/*.conf etc/*.ini /etc/heat
     sudo install etc/bash_completion.d/heat /etc/bash_completion.d/heat
     sudo install -d /var/log/heat
+    sudo sed --in-place -e s/%ENCRYPTION_KEY%/`hexdump -n 16 -v -e '/1 "%02x"' /dev/random`/ /etc/heat/heat-engine.conf
 
 Download Fedora 16 DVD and copy it to libvirt images location
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