diff --git a/app/views/application/_social_meta.html.erb b/app/views/application/_social_meta.html.erb
index 3345bdf24..affdeff22 100644
--- a/app/views/application/_social_meta.html.erb
+++ b/app/views/application/_social_meta.html.erb
@@ -31,4 +31,5 @@
 <%= twitter_card_tag 'description', @petition.background %>
 <% else %>
 <%= twitter_card_tag 'title', page_title %>
+<%= twitter_card_tag 'description', 'Official online petitions in response to issues of the day, listing the number that got a Government response, and those that have been debated in the House of Parliament' %>
 <% end %>