diff --git a/docs/quickstart-browser.md b/docs/quickstart-browser.md
index 1389d09..1d09990 100644
--- a/docs/quickstart-browser.md
+++ b/docs/quickstart-browser.md
@@ -12,3 +12,10 @@ verifyIdentity('dns:doip.rocks', '9f0048ac0b23301e1f77e994909f6bd6f80f485d')
 This snippet works en will verify the [doip.rocks](https://doip.rocks) domain as
 linked to Yarmo's cryptographic key using the [dns](serviceproviders/dns.md)
 service provider.
+
+Please note you need to include the 
+[openpgpjs](https://github.com/openpgpjs/openpgpjs) library:
+
+```html
+<script src="https://cdn.jsdelivr.net/npm/openpgp/dist/openpgp.min.js"></script>
+```