diff --git a/app/api/mobile/entities/course.rb b/app/api/mobile/entities/course.rb
index 4c91738c1..520f73384 100644
--- a/app/api/mobile/entities/course.rb
+++ b/app/api/mobile/entities/course.rb
@@ -58,6 +58,7 @@ module Mobile
       end
       course_expose :current_user_is_member
       course_expose :current_user_is_teacher
+      course_expose :work_unit
     end
   end
 end