diff --git a/sounds/package_r.txt b/sounds/package_r.txt
index a21aedacc..1e0714577 100644
--- a/sounds/package_r.txt
+++ b/sounds/package_r.txt
@@ -1 +1,3 @@
+Derived from picking_up_DVDs.wav by daboy291
+https://freesound.org/people/daboy291/sounds/138078/
 http://creativecommons.org/publicdomain/zero/1.0/
\ No newline at end of file