diff --git a/COPYING.md b/COPYING.md
index 5a7301cb3e..471aed41dc 100644
--- a/COPYING.md
+++ b/COPYING.md
@@ -52,7 +52,7 @@ public/piece/letter | [usolando](https://lichess.org/@/usolando) | AGPLv3+
 public/piece/pirouetti | [pirouetti](https://lichess.org/@/pirouetti) | AGPLv3+
 public/piece/merida | Armando Hernandez Marroquin | [GPLv2+](https://www.gnu.org/licenses/gpl-2.0.txt)
 public/piece/shapes | [flugsio](https://github.com/flugsio/chess_shapes) | [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)
-public/piece/pixel | therealqtpi | AGPLv3+
+public/piece/pixel | [therealqtpi](https://twitter.com/therealqtpi) | AGPLv3+
 public/sounds/futuristic | [Enigmahack](https://github.com/Enigmahack) | AGPLv3+
 public/sounds/nes | [Enigmahack](https://github.com/Enigmahack) | AGPLv3+
 public/sounds/piano | [Enigmahack](https://github.com/Enigmahack) | AGPLv3+