diff --git a/README.rst b/README.rst
index 69507cf..cdee5c6 100644
--- a/README.rst
+++ b/README.rst
@@ -25,3 +25,10 @@ By default, the following components are installed:
 * Amavis (with SpamAssassin and ClamAV)  
 
 If you want to follow details of installation process, use --debug
+
+At the end of the process, you should consider updating virus database with this command:
+
+```
+freshclam
+/etc/init.d/clamav-daemon restart
+```