@ -73,7 +73,7 @@ class CategoryViewSet(ExtendedModelViewSet):
class CourseViewSet(ExtendedModelViewSet):
queryset = Course.objects.select_related(
'author', 'category', 'cover',
'author', 'category', 'cover', 'gallery',
).prefetch_related(
'likes', 'materials', 'content',
).all()