diff --git a/apps/course/views.py b/apps/course/views.py
index 7431cda4..2d409cf6 100644
--- a/apps/course/views.py
+++ b/apps/course/views.py
@@ -177,7 +177,7 @@ class CourseView(DetailView):
 
     def get(self, request, *args, **kwargs):
         response = super().get(request, *args, **kwargs)
-        if (self.object.status != Course.PUBLISHED and request.user.role not in [User.AUTHOR_ROLE, User.ADMIN_ROLE]) or self.object.author != request.user:
+        if (self.object.status != Course.PUBLISHED and request.user.role != User.ADMIN_ROLE) or (self.object.status != Course.PUBLISHED and request.user.role != User.AUTHOR_ROLE and self.object.author != request.user):
             raise Http404
         return response