diff --git a/app/models/concerns/taskable.rb b/app/models/concerns/taskable.rb
index 33b4814d7ec2d8f955cba8ba44bbc9bcfd818977..660e58b876db8d4acb48a1ca98ee9fb4a5b8e0d3 100644
--- a/app/models/concerns/taskable.rb
+++ b/app/models/concerns/taskable.rb
@@ -1,4 +1,5 @@
 require 'task_list'
+require 'task_list/filter'
 
 # Contains functionality for objects that can have task lists in their
 # descriptions.  Task list items can be added with Markdown like "* [x] Fix