diff --git a/readme.md b/readme.md
index 75a304a..ebf4fd7 100644
--- a/readme.md
+++ b/readme.md
@@ -70,3 +70,4 @@ VERSION=<version> make release
 - [x] ~~optionals~~
 - [x] ~~ifLet~~
 - [ ] functions inside `extension Reducer {...}` isn't parsed.
+- [ ] case paths like `.ifLet(\.$destination, action: \.destination) {`