diff --git a/preserves.md b/preserves.md
index d054a19..e19967d 100644
--- a/preserves.md
+++ b/preserves.md
@@ -1442,6 +1442,8 @@ remain case-insensitive (`%i"..."`). However, non-JSON extensions do
 not. There's only one (?) at the moment, the `%i"f"` in `Float`;
 should it be changed to case-sensitive?
 
+Q. Should `IOList`s be wrapped in an identifying unary record constructor?
+
 TODO: Examples of the ordering. `"bzz" < "c" < "caa"`; `#true < 3 < "3" < |3|`
 
 TODO: Probably should add a canonicalized subset. Consider adding