diff --git a/docs/getting-started/build-tools.md b/docs/getting-started/build-tools.md
index 47c25b4945..c086c036bf 100644
--- a/docs/getting-started/build-tools.md
+++ b/docs/getting-started/build-tools.md
@@ -46,6 +46,7 @@ For example, run `TWBS_SASS=sass grunt` to test and build Bootstrap with Ruby Sa
 
 Bootstrap uses [Autoprefixer][autoprefixer] (included in our Gruntfile and build process) to automatically add vendor prefixes to some CSS properties at build time. Doing so saves us time and code by allowing us to write key parts of our CSS a single time while eliminating the need for vendor mixins like those found in v3.
 
+We maintain the list of browsers supported through Autoprefixer in a separate file within our GitHub repository. See [`/grunt/autoprefixer-settings.json`](https://github.com/twbs/bootstrap/blob/master/grunt/autoprefixer-settings.js) for details.
 
 ## Local documentation