diff --git a/app/views/groups/milestones/new.html.haml b/app/views/groups/milestones/new.html.haml
index caa8c4bc0ec5f5e0115ea25587c087a494c32935..7d9d27ae1fccc98f044e33e77ebf95d5c26ce6e8 100644
--- a/app/views/groups/milestones/new.html.haml
+++ b/app/views/groups/milestones/new.html.haml
@@ -27,7 +27,7 @@
         = f.label :description, "Description", class: "control-label"
         .col-sm-10
           = render layout: 'projects/md_preview', locals: { preview_class: "md-preview" } do
-            = render 'projects/zen', f: f, attr: :description, classes: 'note-textarea'
+            = render 'projects/zen', f: f, attr: :description, classes: 'note-textarea', placeholder: 'Write milestone description...'
             .clearfix
             .error-alert
       .form-group