diff --git a/templates/drupal.vhost.erb b/templates/drupal.vhost.erb
index 5b99c7d..e84d2bd 100644
--- a/templates/drupal.vhost.erb
+++ b/templates/drupal.vhost.erb
@@ -23,7 +23,7 @@ NameVirtualHost <%= @vhost_name %>:443
   ServerName <%= @srvname %>
 <% if @serveraliases.is_a? Array -%>
 <% @serveraliases.each do |name| -%><%= " ServerAlias #{name}\n" %><% end -%>
-<% elsif @serveraliases != '' -%>
+<% elsif ! ['', nil].include?(@serveraliases) -%>
 <%= " ServerAlias #{@serveraliases}" %>
 <% end -%>
   DocumentRoot <%= @docroot %>