diff --git a/zic.c b/zic.c
index 1c6b09b..5968fa5 100644
--- a/zic.c
+++ b/zic.c
@@ -2230,5 +2230,5 @@ const int	i;
 }
 
 /*
-** UNIX was a registered trademark of UNIX System Laboratories in 1993.
+** UNIX was a registered trademark of The Open Group in 2003.
 */