diff --git a/locale/fr.po b/locale/fr.po
index 5d35f7f965..defc627551 100644
--- a/locale/fr.po
+++ b/locale/fr.po
@@ -13,7 +13,7 @@ msgstr ""
 "Language-Team: fr\n"
 "Language: fr\n"
 "MIME-Version: 1.0\n"
-"Content-Type: text/plain; charset=CHARSET\n"
+"Content-Type: text/plain; charset=utf8\n"
 "Content-Transfer-Encoding: 8bit\n"
 
 #: extmod/vfs_fat.c:426 py/moduerrno.c:115