diff --git a/ice-9/ChangeLog b/ice-9/ChangeLog
index af1af1d35..0deee679e 100644
--- a/ice-9/ChangeLog
+++ b/ice-9/ChangeLog
@@ -1,3 +1,12 @@
+2001-09-08  Thien-Thi Nguyen  <ttn@revel.glug.org>
+
+	* optargs.scm (lambda*): Record the broken-down argument list in
+	the `arglist' procedure property.
+	* session.scm (arity): Use new `arglist' procedure property to
+	present a more detailed argument list.
+
+	Thanks to Matthias Köppe!
+
 2001-09-07  Thien-Thi Nguyen  <ttn@revel.glug.org>
 
 	* getopt-long.scm (process-options, getopt-long): Fix omission