diff --git a/htdocs/api/class/api_setup.class.php b/htdocs/api/class/api_setup.class.php
index b32eea1f57f..2e52c6af32f 100644
--- a/htdocs/api/class/api_setup.class.php
+++ b/htdocs/api/class/api_setup.class.php
@@ -1095,7 +1095,11 @@ class Setup extends DolibarrApi
      */
     public function getListOfsocialNetworks($sortfield = "rowid", $sortorder = 'ASC', $limit = 100, $page = 0, $active = 1, $sqlfilters = '')
     {
-        $list = array();
+        if (empty($conf->global->MAIN_MODULE_SOCIALNETWORKS)) {
+            throw new RestException(400, 'API not available: this dictionary is not enabled by setup');
+        }
+		
+		$list = array();
         //TODO link with multicurrency module
         $sql = "SELECT t.rowid, t.entity, t.code, t.label, t.url, t.icon, t.active";
         $sql.= " FROM ".MAIN_DB_PREFIX."c_socialnetworks as t";