diff --git a/src/activities/chess/resource/README b/src/activities/chess/resource/README
index 0c9a2129e..fa07bc702 100644
--- a/src/activities/chess/resource/README
+++ b/src/activities/chess/resource/README
@@ -1,18 +1,21 @@
-Copyright: Timothée Giet, 2016
+Copyright: Timothée Giet, 2016 - 2018
 License: CC-BY-SA 4.0
 Files:
 background-wood.svg
 bb.svg
 bk.svg
 bn.svg
 bp.svg
 bq.svg
 br.svg
 chess-black.svg
 chess-white.svg
+redo.svg
+turn.svg
+undo.svg
 wb.svg
 wk.svg
 wn.svg
 wp.svg
 wq.svg
 wr.svg