diff --git a/extra/project-euler/002/002.factor b/extra/project-euler/002/002.factor
index b0b21e76e1..0b8f773887 100644
--- a/extra/project-euler/002/002.factor
+++ b/extra/project-euler/002/002.factor
@@ -1,4 +1,4 @@
-! Copyright (c) 2007 Aaron Schaefer.
+! Copyright (c) 2007 Aaron Schaefer, Alexander Solovyov.
 ! See http://factorcode.org/license.txt for BSD license.
 USING: kernel math sequences shuffle ;
 IN: project-euler.002