diff --git a/README.md b/README.md
index b53e7ff..6eac506 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 This is a mandelbrot set viewer written for fun bc it looks weird and cool to me. It's called fractal because it's easy to change the fractal in the code, and I would like to have some sort of simple scripting language for it eventually.
 
-It's normal rust, so `cargo run` should fully compile and start it.
+It's normal rust, so `cargo run` should fully compile and start it. It requires nightly to help with fixed point operations.
 
 ## Features
 
diff --git a/src/main.rs b/src/main.rs
index 885156f..7276fdc 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,6 +1,5 @@
 #![feature(bigint_helper_methods)]
 #![feature(int_roundings)]
-#![feature(unbounded_shifts)]
 
 use client::ClientApp;