diff --git a/Python/thread.c b/Python/thread.c
index 3ee71aa..fb0f6a2 100644
--- a/Python/thread.c
+++ b/Python/thread.c
@@ -1,6 +1,6 @@
 /***********************************************************
-Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
-Amsterdam, The Netherlands.
+Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
+The Netherlands.
 
                         All Rights Reserved