diff --git a/app/models/member.rb b/app/models/member.rb
index ef8c82a1e..79e9eeca6 100644
--- a/app/models/member.rb
+++ b/app/models/member.rb
@@ -71,8 +71,8 @@ class Member < ActiveRecord::Base
       else
         1
       end
-    elsif a
-      a <=> b
+    elsif a.any?
+      b.any? ? a <=> b : -1
     else
       1
     end