diff --git a/copyright.txt b/copyright.txt
index 02b8467..e242c7c 100644
--- a/copyright.txt
+++ b/copyright.txt
@@ -2,5 +2,4 @@ Code by Pierre-Yves Rollo (pyrollo)
 Contributors:
 (gpcf): Compatibility with signs lib
 (Thomas--S): Fix /clearobjects bug
-(12Me21): on_place improvement and code style fixing
-
+(12Me21): on_place and on_rotate improvements