diff --git a/app/models/tracked_time_entry.rb b/app/models/tracked_time_entry.rb
index 7086d80..28d5dc6 100644
--- a/app/models/tracked_time_entry.rb
+++ b/app/models/tracked_time_entry.rb
@@ -3,7 +3,10 @@ class TrackedTimeEntry < ApplicationRecord
 
   enum :kind, [
     :concurrent,
-    :catchup
+    :catchup,
+
+    :preparation,
+    :review
   ]
 
   def duration