diff --git a/ansi-tests/rt.lsp b/ansi-tests/rt.lsp
index 1553aab8b7083385c935075c440bca6adbb44dde..db2f586232d23f16142219850bec377e71970619 100644
--- a/ansi-tests/rt.lsp
+++ b/ansi-tests/rt.lsp
@@ -21,7 +21,8 @@
  |  SOFTWARE.                                                                 |
  |----------------------------------------------------------------------------|#
 
-;This is the December 19, 1990 version of the regression tester.
+;This was the December 19, 1990 version of the regression tester, but
+;has since been modified.
 
 (in-package :regression-test)