diff --git a/Doc/tut/tut.tex b/Doc/tut/tut.tex
index 3aaeba9..42a01a1 100644
--- a/Doc/tut/tut.tex
+++ b/Doc/tut/tut.tex
@@ -6,8 +6,8 @@
 	
 \author{
 	Guido van Rossum \\
-	Dept. CST, CWI, Kruislaan 413 \\
-	1098 SJ Amsterdam, The Netherlands \\
+	Dept. CST, CWI, P.O. Box 94079 \\
+	1090 GB Amsterdam, The Netherlands \\
 	E-mail: {\tt guido@cwi.nl}
 }