diff --git a/courses/models.py b/courses/models.py
index aac726d..c7209e8 100755
--- a/courses/models.py
+++ b/courses/models.py
@@ -684,14 +684,6 @@ class CourseMap(models.Model):
 
         return _next._type, _next.get_obj()
 
-    def get_lesson_before(self):
-        try:
-            _before = CourseMap.objects.get(course=self.course, sort=self.sort - 2)
-        except CourseMap.DoesNotExist:
-            _before = CourseMap.objects.get(course=self.course, sort=0)
-
-        return _before._type, _before.get_obj()
-
     def get_before(self):
         try:
             _next = CourseMap.objects.get(course=self.course, sort=self.sort - 1)