diff --git a/INSTALL_DEBIAN_4.0.txt b/INSTALL_DEBIAN_4.0.txt
index 7012b35766255d74e3e8665176f52ad532bdeb72..ede51f4f42a83df1a1a22989794cf816452e1905 100644
--- a/INSTALL_DEBIAN_4.0.txt
+++ b/INSTALL_DEBIAN_4.0.txt
@@ -77,6 +77,7 @@ a2enmod suexec
 a2enmod rewrite
 a2enmod ssl
 a2enmod actions
+a2enmod include
 
 4) Install pure-ftpd and quota
 
diff --git a/INSTALL_DEBIAN_LENNY.txt b/INSTALL_DEBIAN_LENNY.txt
index 03000a38f6d45e70b5e325234a789315f93212b4..4c9faace160a68e2951e781da566f7208d198d2e 100644
--- a/INSTALL_DEBIAN_LENNY.txt
+++ b/INSTALL_DEBIAN_LENNY.txt
@@ -88,7 +88,7 @@ apt-get install apache2 apache2.2-common apache2-doc apache2-mpm-prefork apache2
 
 # Then run the following to enable the Apache modules suexec, rewrite and ssl:
 
-a2enmod suexec rewrite ssl actions
+a2enmod suexec rewrite ssl actions include
 
 # Secure phpMyAdmin by deleting setuppassword-file
 # and removing/commenting Setup Authorization from apache.conf
diff --git a/INSTALL_UBUNTU_7.10.txt b/INSTALL_UBUNTU_7.10.txt
index 94b97920fff262109c44021cbf955b628e589d3e..d389914b33b121d1b22ce2fbdfb0e5ba106bd389 100644
--- a/INSTALL_UBUNTU_7.10.txt
+++ b/INSTALL_UBUNTU_7.10.txt
@@ -43,6 +43,7 @@ a2enmod suexec
 a2enmod rewrite
 a2enmod ssl
 a2enmod actions
+a2enmod include
 
 4) Install pure-ftpd and quota