diff --git a/docs/LIBRARIES.md b/docs/LIBRARIES.md
index a722ed1..85cdda7 100644
--- a/docs/LIBRARIES.md
+++ b/docs/LIBRARIES.md
@@ -4,3 +4,4 @@ MailHog libraries
 If you've created a MailHog client library, open a pull request and add it!
 
 * [APIv2 library for NodeJS](https://github.com/blueimp/mailhog-node)
+* [APIv1/APIv2 library for PHP](https://github.com/rpkamp/mailhog-client)