diff --git a/README.md b/README.md
index 51d09a9..fe18cc2 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,7 @@ Formally verified implementation of the ARTIQ RTIO core in nMigen
 - Devise a suitable migration strategy for `artiq.gateware.rtio` from Migen to nMigen
 - [ ] Implement the core in nMigen
 - - [x] `rtio.cri` (`Interface` and `CRIDecoder` only)
+- - [ ] `rtio.rtlink`
 - - [ ] `rtio.sed.layouts`
 - - [ ] `rtio.sed.output_network`
 - - [ ] `rtio.sed.output_driver`