diff --git a/crates/coremem/src/driver.rs b/crates/coremem/src/driver.rs
index 372bb3d..b1d5e8d 100644
--- a/crates/coremem/src/driver.rs
+++ b/crates/coremem/src/driver.rs
@@ -336,7 +336,7 @@ where
     }
 }
 
-// TODO: use a Cow for this!
+// this is effectively `Cow`, but without the `ToOwned` (Clone) requirement
 pub enum ValueOrRef<'a, T> {
     Value(T),
     Ref(&'a T),