diff --git a/src/uu/sort/src/ext_sorter/NOTICE b/src/uu/sort/src/ext_sorter/NOTICE
index d7c2199d1..fdfc6f04f 100644
--- a/src/uu/sort/src/ext_sorter/NOTICE
+++ b/src/uu/sort/src/ext_sorter/NOTICE
@@ -1,6 +1,6 @@
 ext_sorter
 Copyright 2018 Andre-Philippe Paquet
-Copyright 2021 Robert Swinford
+Modifications copyright 2021 Robert Swinford
 
 This ext_sorter module includes software developed by Andre-Philippe Paquet as extsort.