diff --git a/src/main.rs b/src/main.rs
index ca2e380..da1c793 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,7 +2,7 @@ use rand::rng;
 use rand::seq::SliceRandom;
 use std::fmt::{Display, Formatter};
 
-/// `pick` must be an bijection
+/// `pick` must be permutative
 trait Player {
     /// takes a cycle number and returns a box index
     fn choose(&mut self, cycle: usize, num_boxes: usize) -> usize;