diff --git a/addons/mail/mail_thread_view.xml b/addons/mail/mail_thread_view.xml
index d5c111573ea..6769fb0d063 100644
--- a/addons/mail/mail_thread_view.xml
+++ b/addons/mail/mail_thread_view.xml
@@ -55,7 +55,7 @@
- Todo
+ To-do
mail.wall
mail.message
{
@@ -130,7 +130,7 @@
- Todo
+ To-do