diff --git a/lectures/views.py b/lectures/views.py
index 9aef6aa8cd096121988a23a346dba11b5e83e962..2d3a2e2a9444330d4d743ac51edda38d5ed355e8 100644
--- a/lectures/views.py
+++ b/lectures/views.py
@@ -142,7 +142,7 @@ def view_group_lectures(request, group_id: int):
         if not group_id_exists:  # Doesn't exist at all
             raise HTTPExceptions.NOT_FOUND
         elif group_id_exists:  # Exists without permissions checks
-            if request.user_is_authenticated:  # The user is logged in
+            if request.user.is_authenticated:  # The user is logged in
                 raise HTTPExceptions.NOT_FOUND
             else:  # The user can log in
                 return generate_auth_redirect(request)