diff --git a/src/tinyvec.rs b/src/tinyvec.rs
index ab4e5e4..31db439 100644
--- a/src/tinyvec.rs
+++ b/src/tinyvec.rs
@@ -723,6 +723,7 @@ impl<A: Array> Iterator for TinyVecIterator<A> {
     }
   }
 }
+// TODO: fused iterator
 
 impl<A: Array> IntoIterator for TinyVec<A> {
   type Item = A::Item;