diff --git a/app/models/course.rb b/app/models/course.rb
index 00cd48d03..a14e466e5 100644
--- a/app/models/course.rb
+++ b/app/models/course.rb
@@ -15,7 +15,7 @@ class Course < ApplicationRecord
   # rubocop:todo Rails/HasManyOrHasOneDependent
   has_many :media, -> { order(position: :asc) },
            as: :teachable,
-           inverse_of: :course
+           inverse_of: :teachable
   # rubocop:enable Rails/HasManyOrHasOneDependent
 
   # in a course, you can import other media