diff --git a/mods/jewels/README.txt b/mods/jewels/README.txt
index cc837e6..fb44ac8 100644
--- a/mods/jewels/README.txt
+++ b/mods/jewels/README.txt
@@ -6,5 +6,6 @@ Adds tools with different stats via a Jeweler's Workbench.
 
 Media license: CC BY-SA 4.0
 * jewels_jewelling_a_tool.ogg: InspectorJ, CC BY 3.0 <https://freesound.org/people/InspectorJ/sounds/354140/>
+* jewels_jewelling_fail.ogg: derivate work of the above, same license
 
 Source code license: LGPLv2.1