diff --git a/app/views/shared/dossiers/editable_champs/_date.html.haml b/app/views/shared/dossiers/editable_champs/_date.html.haml
index c3d7acee7..1f0c344d2 100644
--- a/app/views/shared/dossiers/editable_champs/_date.html.haml
+++ b/app/views/shared/dossiers/editable_champs/_date.html.haml
@@ -1,3 +1,4 @@
 = form.date_field :value,
   value: champ.value,
-  required: champ.mandatory?
+  required: champ.mandatory?,
+  placeholder: 'aaaa-mm-jj'