diff --git a/app/views/context_menus/issues.html.erb b/app/views/context_menus/issues.html.erb
index 6b3fe4b9e..2163d95c1 100644
--- a/app/views/context_menus/issues.html.erb
+++ b/app/views/context_menus/issues.html.erb
@@ -111,7 +111,7 @@
<%= bulk_update_custom_field_context_menu_link(field, text, value || text) %>
<% end %>
<% unless field.is_required? %>
- <%= bulk_update_custom_field_context_menu_link(field, l(:label_none), '') %>
+ <%= bulk_update_custom_field_context_menu_link(field, l(:label_none), '__none__') %>
<% end %>