diff --git a/language/br_FR/common.lang.php b/language/br_FR/common.lang.php
index ac9ad40ed..6ca757aae 100644
--- a/language/br_FR/common.lang.php
+++ b/language/br_FR/common.lang.php
@@ -443,4 +443,5 @@ $lang['day']['4'] = 'ar Yaou';
 $lang['day']['3'] = 'ar Merc\'her';
 $lang['day']['2'] = 'ar Meurzh';
 $lang['month']['3'] = 'a viz Meurzh';
-$lang['day']['1'] = 'al Lun';
\ No newline at end of file
+$lang['day']['1'] = 'al Lun';
+$lang['Your authentication key is no longer valid.'] = 'N\'eo ket gwiriek ken hoc\'h alc\'hwez dilesadur';
\ No newline at end of file