diff --git a/app/models/form_handler.rb b/app/models/form_handler.rb
index 8cbd5a2e5..1ef74b265 100644
--- a/app/models/form_handler.rb
+++ b/app/models/form_handler.rb
@@ -75,6 +75,10 @@ class FormHandler
   end
 
   def lettings_forms
+    @lettings_forms ||= get_lettings_forms
+  end
+
+  def get_lettings_forms
     forms = {}
     directories.each do |directory|
       Dir.glob("#{directory}/*.json").each do |form_path|