diff --git a/app/models/course.rb b/app/models/course.rb
index b9c227e..cfb4bf9 100644
--- a/app/models/course.rb
+++ b/app/models/course.rb
@@ -93,7 +93,7 @@ class Course < ApplicationRecord
   # Sometimes our toggl entries get mismatched or otherwise out of sync. This method will delete all tracked time entries
   # for this course and then re-import them from Toggl.
   def redo_toggl_entries!
-    TrackedTimeEntry.where(lecture: lectures).destroy_all
+    TrackedTimeEntry.where(subject: lectures).destroy_all
     ScrapeTogglJob.perform_later([self.id])
   end
 end