diff --git a/templates/vhosts.conf.j2 b/templates/vhosts.conf.j2
index 6daf2be..1b0d64a 100644
--- a/templates/vhosts.conf.j2
+++ b/templates/vhosts.conf.j2
@@ -24,7 +24,7 @@
 {% else %}
     Require all granted
 {% endif %}
-{% if vhost.extra_parameters_directory %}
+{% if vhost.extra_parameters_directory is defined %}
   {{ vhost.extra_parameters_directory }}
 {% endif %}
   </Directory>