diff --git a/lib/user_segments.rb b/lib/user_segments.rb
index a52ec1b03..02fbe9b5f 100644
--- a/lib/user_segments.rb
+++ b/lib/user_segments.rb
@@ -1,4 +1,11 @@
 class UserSegments
+  SEGMENTS = %w(all_users
+                proposal_authors
+                investment_authors
+                feasible_and_undecided_investment_authors
+                selected_investment_authors
+                winner_investment_authors)
+
   def self.all_users
     User.newsletter.active
   end