diff --git a/nocallavailable.php b/nocallavailable.php
index 911fc839..c4b4ce0a 100644
--- a/nocallavailable.php
+++ b/nocallavailable.php
@@ -47,7 +47,7 @@ require ("auth-interviewer.php");
 /** 
  * Language functions
  */
-include ("lang.inc.php");
+include_once ("lang.inc.php");
 
 if (isset($_GET['contact_phone']))
 {