diff --git a/arrow/README.md b/arrow/README.md
index d7501b2aea8..4705d881ddd 100644
--- a/arrow/README.md
+++ b/arrow/README.md
@@ -52,6 +52,7 @@ The `arrow` crate provides the following features which may be enabled in your `
 - `chrono-tz` - support of parsing timezone using [chrono-tz](https://docs.rs/chrono-tz/0.6.0/chrono_tz/)
 - `ffi` - bindings for the Arrow C [C Data Interface](https://arrow.apache.org/docs/format/CDataInterface.html)
 - `pyarrow` - bindings for pyo3 to call arrow-rs from python
+- `dyn_cmp_dict` - enables comparison of dictionary arrays within dyn comparison kernels
 
 ## Arrow Feature Status