diff --git a/README.md b/README.md
index 857e093..d254ca9 100644
--- a/README.md
+++ b/README.md
@@ -115,7 +115,7 @@ The latest release version of Specter is hosted on [Clojars](https://clojars.org
 Specter's API is contained in these files:
 
 - [macros.clj](https://github.com/nathanmarz/specter/blob/master/src/clj/com/rpl/specter/macros.clj): This contains the core `select/transform/etc.` operations as well as macros for defining new navigators.
-- [specter.cljx](https://github.com/nathanmarz/specter/blob/master/src/clj/com/rpl/specter.cljx): This contains the build-in navigators and functional versions of `select/transform/etc.`
+- [specter.cljx](https://github.com/nathanmarz/specter/blob/master/src/clj/com/rpl/specter.cljx): This contains the built-in navigators and functional versions of `select/transform/etc.`
 - [transient.cljx](https://github.com/nathanmarz/specter/blob/master/src/clj/com/rpl/specter/transient.cljx): This contains navigators for transient collections.
 - [zipper.cljx](https://github.com/nathanmarz/specter/blob/master/src/clj/com/rpl/specter/zipper.cljx): This integrates zipper-based navigation into Specter.