diff --git a/README.mkd b/README.mkd
--- a/README.mkd
+++ b/README.mkd
@@ -161,7 +161,7 @@
 
 Fonts: Droid Sans, [Iosevka,](https://typeof.net/Iosevka/), [Typicons by Stephen Hutchings](https://www.s-ings.com/typicons/), [OCRA}() designed by American Type Founders and converted by Matthew Skala
 
-Sounds: Bell by InspectorJ.
+Sounds: Bell, hammering, and jackhammer sounds by InspectorJ; Switch clicking by qubodup
 
 Sources for the procedural generation are documented in Sources.md.