diff --git a/modules/forum.module b/modules/forum.module
index dc867b28ebe..87cd82db316 100644
--- a/modules/forum.module
+++ b/modules/forum.module
@@ -29,11 +29,12 @@ function forum_perm() {
 function forum_conf_options() {
 
   if (module_exist("taxonomy")) {
+    $vocs[0] = "<". t("none") .">";
     foreach (taxonomy_get_vocabularies("forum") as $vid => $voc) {
       $vocs[$vid] = $voc->name;
     }
 
-    if ($vocs) {
+    if ($voc) {
       $output .= form_select("Forum vocabulary", "forum_nav_vocabulary", variable_get("forum_nav_vocabulary", ""), $vocs, t("The taxonomy vocabulary that will be used as the navigation tree."));
       $output .= _taxonomy_term_select("Containers", "forum_containers", variable_get("forum_containers", array()), variable_get("forum_nav_vocabulary", ""), t("You can choose forums which will not have topics, but will be just containers for other forums."), 1, t("<none>"));
 
diff --git a/modules/forum/forum.module b/modules/forum/forum.module
index dc867b28ebe..87cd82db316 100644
--- a/modules/forum/forum.module
+++ b/modules/forum/forum.module
@@ -29,11 +29,12 @@ function forum_perm() {
 function forum_conf_options() {
 
   if (module_exist("taxonomy")) {
+    $vocs[0] = "<". t("none") .">";
     foreach (taxonomy_get_vocabularies("forum") as $vid => $voc) {
       $vocs[$vid] = $voc->name;
     }
 
-    if ($vocs) {
+    if ($voc) {
       $output .= form_select("Forum vocabulary", "forum_nav_vocabulary", variable_get("forum_nav_vocabulary", ""), $vocs, t("The taxonomy vocabulary that will be used as the navigation tree."));
       $output .= _taxonomy_term_select("Containers", "forum_containers", variable_get("forum_containers", array()), variable_get("forum_nav_vocabulary", ""), t("You can choose forums which will not have topics, but will be just containers for other forums."), 1, t("<none>"));