diff --git a/src/functional/generics-type-classes.md b/src/functional/generics-type-classes.md
index 78a4d06f..31fa6e26 100644
--- a/src/functional/generics-type-classes.md
+++ b/src/functional/generics-type-classes.md
@@ -118,7 +118,7 @@ mod bootp {
     pub(crate) struct AuthInfo(); // no authentication in bootp
 }
 
-// private module, lest outside users invent their own protocol kinds!
+// private module, lets outside users invent their own protocol kinds!
 mod proto_trait {
     use super::{bootp, nfs};
     use std::path::{Path, PathBuf};