diff --git a/examples/nextjs-hooks/src/bootstrap.js b/examples/nextjs-hooks/src/bootstrap.js
index a92e7c8483b890..d0d26b4bbb954e 100644
--- a/examples/nextjs-hooks/src/bootstrap.js
+++ b/examples/nextjs-hooks/src/bootstrap.js
@@ -1,4 +1,10 @@
-// Use the same helper as Babel to avoid bundle bloat.
 import { install } from '@material-ui/styles';
 
+// We will make @material-ui/styles the default style implementation
+// for the core components in Material-UI v4.
+// This installation step is temporary.
+// Behind the scenes, the install() function switches the
+// styling engine the core components use.
+//
+// https://material-ui.com/css-in-js/basics/#migration-for-material-ui-core-users
 install();