diff --git a/INSTALL b/INSTALL
index 73f0dfa..a2a8e7c 100644
--- a/INSTALL
+++ b/INSTALL
@@ -11,6 +11,7 @@ To install DAVAdmin you need:
  * administration privileges for the webserver or a cooperative ISP
  * shell access to create administration users for you DAVAdmin installation
  * for site installation you need write access to a globally available directory on the webserver host (i.e. /usr/local)
+ * installed [http://www.smarty.net/ Smarty template engine] available for PHP as `smarty` in the php include, on Debian just install the smarty package.
 
 == DAVAdmin installation ==
 
@@ -158,4 +159,4 @@ To make the setup active you need to restart your apache webserver. On a Debian
 sudo invoke-rc.d apache2 restart
 }}}
 
-For other systems please read the manuals on how to restart the apache webserver.
\ No newline at end of file
+For other systems please read the manuals on how to restart the apache webserver.