diff --git a/modules/addon/addon.admin.controller.php b/modules/addon/addon.admin.controller.php
index 3f1b326b9..331399d84 100644
--- a/modules/addon/addon.admin.controller.php
+++ b/modules/addon/addon.admin.controller.php
@@ -67,7 +67,7 @@
          **/
         function doInsert($addon) {
             $args->addon = $addon;
-            $args->is_used = 'Y';
+            $args->is_used = 'N';
             return executeQuery('addon.insertAddon', $args);
         }
 
diff --git a/modules/addon/queries/insertAddon.xml b/modules/addon/queries/insertAddon.xml
index ea78d668d..1b4cf2d99 100644
--- a/modules/addon/queries/insertAddon.xml
+++ b/modules/addon/queries/insertAddon.xml
@@ -4,6 +4,7 @@
     </tables>
     <columns>
       <column name="addon" var="addon" notnull="notnull" />
+      <column name="is_used" var="is_used" default="N" notnull="notnull" />
       <column name="regdate" var="regdate" default="curdate()" />
     </columns>
 </query>