diff --git a/courses/views.py b/courses/views.py
index f0171b2..4634e5d 100644
--- a/courses/views.py
+++ b/courses/views.py
@@ -25,7 +25,7 @@ class TreeView(APIView):
 
         res = CourseTreeSerializer(course).data
 
-        if request.user.is_authenticated():
+        if not request.user.is_authenticated():
             res['active_id'] = False
             res['extra_privilege'] = []
             return Response(res, self.status_code)