diff --git a/install/lib/installer_base.lib.php b/install/lib/installer_base.lib.php
index aaae681847db161757ade69de8076280d8f8d974..7dd49b1389954d26030c2539eab55c71a86b6dc2 100644
--- a/install/lib/installer_base.lib.php
+++ b/install/lib/installer_base.lib.php
@@ -633,6 +633,7 @@ class installer_base {
 
 		//* Create aliasaes
 		exec('/usr/lib/mailman/bin/genaliases 2>/dev/null');
+		if(is_file('/var/lib/mailman/data/virtual-mailman')) exec('postmap /var/lib/mailman/data/virtual-mailman');
 
 	}