diff --git a/app/models/renalware/letters/event.rb b/app/models/renalware/letters/event.rb
index <HASH>..<HASH> 100644
--- a/app/models/renalware/letters/event.rb
+++ b/app/models/renalware/letters/event.rb
@@ -3,10 +3,6 @@ require_dependency "renalware/letters"
 module Renalware
   module Letters
     class Event < DumbDelegator
-      def initialize(object=nil)
-        super(object)
-      end
-
       def description
         raise NotImplementedError
       end
diff --git a/app/models/renalware/letters/event/unknown.rb b/app/models/renalware/letters/event/unknown.rb
index <HASH>..<HASH> 100644
--- a/app/models/renalware/letters/event/unknown.rb
+++ b/app/models/renalware/letters/event/unknown.rb
@@ -3,6 +3,10 @@ require_dependency "renalware/letters/event"
 module Renalware
   module Letters
     class Event::Unknown < Event
+      def initialize(object=nil)
+        super(object)
+      end
+
       def description
       end
Move initialize method into Unknown class