diff --git a/lang/serbian-win1250.inc.php3 b/lang/serbian-windows-1250.inc.php3
similarity index 100%
rename from lang/serbian-win1250.inc.php3
rename to lang/serbian-windows-1250.inc.php3
diff --git a/lang/sync_lang.sh b/lang/sync_lang.sh
index 9f7c7e891..689c2b577 100755
--- a/lang/sync_lang.sh
+++ b/lang/sync_lang.sh
@@ -44,7 +44,7 @@ polish-iso-8859-2
 portuguese-iso-8859-1
 romanian-iso-8859-1
 russian-koi8-r
-serbian-win1250
+serbian-windows-1250
 slovak-iso-8859-2
 spanish
 swedish
diff --git a/libraries/select_lang.lib.php3 b/libraries/select_lang.lib.php3
index 954cb2158..9845cdc1e 100644
--- a/libraries/select_lang.lib.php3
+++ b/libraries/select_lang.lib.php3
@@ -77,7 +77,7 @@ $available_languages = array(
     'pt-iso-8859-1'=> array('pt([-_][[:alpha:]]{2})?|portuguese', 'portuguese-iso-8859-1', 'pt'),
     'ro-iso-8859-1'=> array('ro|romanian', 'romanian-iso-8859-1', 'ro'),
     'ru-koi8-r'    => array('ru|russian', 'russian-koi8-r', 'ru'),
-    'ru-win1251'   => array('ru|russian', 'russian-win1251', 'ru'),
+    'ru-win1251'   => array('ru|russian', 'russian-windows-1251', 'ru'),
     'sk-iso-8859-2'=> array('sk|slovak', 'slovak-iso-8859-2', 'sk'),
     'sk-win1250'   => array('sk|slovak', 'slovak-windows-1250', 'sk'),
     'sq-iso-8859-1'=> array('sq|albanian', 'albanian-iso-8859-1', 'sq'),