1 files changed, 8 insertions, 1 deletions
diff --git a/actionview/lib/action_view/helpers/translation_helper.rb b/actionview/lib/action_view/helpers/translation_helper.rb
index 0615bd2e0d..dde1ef22ac 100644
--- a/actionview/lib/action_view/helpers/translation_helper.rb
+++ b/actionview/lib/action_view/helpers/translation_helper.rb
@@ -88,7 +88,14 @@ module ActionView
           raise e if raise_error
 
           keys = I18n.normalize_keys(e.locale, e.key, e.options[:scope])
-          content_tag('span', keys.last.to_s.titleize, :class => 'translation_missing', :title => "translation missing: #{keys.join('.')}")
+          title = "translation missing: #{keys.join('.')}"
+
+          interpolations = options.except(:default)
+          if interpolations.any?
+            title << ", " << interpolations.map { |k, v| "#{k}: #{ERB::Util.html_escape(v)}" }.join(', ')
+          end
+
+          content_tag('span', keys.last.to_s.titleize, class: 'translation_missing', title: title)
         end
       end
       alias :t :translate