1 files changed, 3 insertions, 0 deletions

diff --git a/COPYING b/COPYING
index 1fb6c6b..a119d7c 100644
--- a/COPYING
+++ b/COPYING
@@ -1,6 +1,9 @@
 examples/haiku.flac is licensed under CC BY-NC 4.0 Deed and based on
 https://freesound.org/people/klankbeeld/sounds/237856/
 
+examples/opera.flac is licensed under CC BY-NC 4.0 Deed and based on
+https://freesound.org/people/Ramston/sounds/262274/
+
 All the other source files are licensed under the GPLv3:
 
                     GNU GENERAL PUBLIC LICENSE