diff --git a/THANKS b/THANKS
index 1b3ca3414..14825bf91 100644
--- a/THANKS
+++ b/THANKS
@@ -20,6 +20,7 @@ For fixes or providing information which led to a fix:
       I. N. Golubev
      Martin Grabmueller
      Andres Holst
+       Neil Jerram
        Brad Knotwell
    Matthias Köppe
       Bruce Korb
diff --git a/libguile/ChangeLog b/libguile/ChangeLog
index 586663225..3fa5ceda2 100644
--- a/libguile/ChangeLog
+++ b/libguile/ChangeLog
@@ -1,5 +1,8 @@
 2001-01-24  Dirk Herrmann  <D.Herrmann@tu-bs.de>
 
+	This patch modifies scm_display_error to perform parameter
+	checking.  Thanks to Neil Jerram for the bug report.
+
 	* backtrace.[ch] (scm_i_display_error):  New function.
 
 	* backtrace.c (scm_display_error):  Added parameter check and