diff --git a/lang/UTF-8/serendipity_lang_se.inc.php b/lang/UTF-8/serendipity_lang_se.inc.php
index 86648aa1..09494506 100644
--- a/lang/UTF-8/serendipity_lang_se.inc.php
+++ b/lang/UTF-8/serendipity_lang_se.inc.php
@@ -6,7 +6,7 @@
 
 @define('LANG_CHARSET', 'UTF-8');
 @define('SQL_CHARSET', 'utf8');
-@define('DATE_LOCALES', 'sv_SV.UTF8, sv_SV.UTF-8, swedish, sv, sv_SV');
+@define('DATE_LOCALES', 'sv_SV.UTF8, sv_SV.UTF-8, swedish, sv, sv_SV, sv_SE.UTF8, sv_SE.UTF-8, sv_SE');
 @define('DATE_FORMAT_ENTRY', '%A, %B %e. %Y');
 @define('DATE_FORMAT_SHORT', '%Y-%m-%d %H:%M');
 @define('WYSIWYG_LANG', 'se-utf');
diff --git a/lang/serendipity_lang_se.inc.php b/lang/serendipity_lang_se.inc.php
index 4405ce68..5aa8fb80 100644
--- a/lang/serendipity_lang_se.inc.php
+++ b/lang/serendipity_lang_se.inc.php
@@ -6,7 +6,7 @@
 
 @define('LANG_CHARSET', 'ISO-8859-1');
 @define('SQL_CHARSET', 'latin1');
-@define('DATE_LOCALES', 'sv_SV.ISO8859-1, sv_SV.ISO-8859-1, swedish, sv, sv_SV');
+@define('DATE_LOCALES', 'sv_SV.ISO8859-1, sv_SV.ISO-8859-1, swedish, sv, sv_SV, sv_SE.ISO8859-1, sv_SE.ISO-8859-1, sv_SE');
 @define('DATE_FORMAT_ENTRY', '%A, %B %e. %Y');
 @define('DATE_FORMAT_SHORT', '%Y-%m-%d %H:%M');
 @define('WYSIWYG_LANG', 'se');