diff --git a/src/problem/section_kind.rs b/src/problem/section_kind.rs
index 7471722..0294654 100644
--- a/src/problem/section_kind.rs
+++ b/src/problem/section_kind.rs
@@ -1,3 +1,4 @@
+// TODO: remove if possible
 #[derive(Clone, Copy, Eq, Ord, PartialEq, PartialOrd)]
 pub enum SectionKind
 {