diff --git a/libraries/select_lang.lib.php3 b/libraries/select_lang.lib.php3
index db416593b..f05b7f5c0 100644
--- a/libraries/select_lang.lib.php3
+++ b/libraries/select_lang.lib.php3
@@ -53,7 +53,7 @@ $available_languages = array(
     'el-iso-8859-7'=> array('el|greek',  'greek-iso-8859-7', 'el'),
     'en-iso-8859-1'=> array('en([-_][[:alpha:]]{2})?|english',  'english-iso-8859-1', 'en'),
     'en-utf-8'     => array('en([-_][[:alpha:]]{2})?|english',  'english-utf-8', 'en'),
-    'es'           => array('es([-_][[:alpha:]]{2})?|spanish', 'spanish', 'es'),
+    'es-iso-8859-1'=> array('es([-_][[:alpha:]]{2})?|spanish', 'spanish-iso-8859-1', 'es'),
     'et-iso-8859-1'=> array('et|estonian', 'estonian-iso-8859-1', 'et'),
     'fi-iso-8859-1'=> array('fi|finnish', 'finnish-iso-8859-1', 'fi'),
     'fr-iso-8859-1'=> array('fr([-_][[:alpha:]]{2})?|french', 'french-iso-8859-1', 'fr'),