diff --git a/app/jobs/user_assignments/propagate_assignment_job.rb b/app/jobs/user_assignments/propagate_assignment_job.rb
index 730454028..6def574d0 100644
--- a/app/jobs/user_assignments/propagate_assignment_job.rb
+++ b/app/jobs/user_assignments/propagate_assignment_job.rb
@@ -50,6 +50,9 @@ module UserAssignments
     end
 
     def destroy_user_assignment(object)
+      # also destroy user designations if it's a MyModule
+      object.user_my_modules.where(user: @user).destroy_all if object.is_a?(MyModule)
+
       UserAssignment.where(user: @user, assignable: object).destroy_all
     end
   end