diff --git a/code/debug.lisp b/code/debug.lisp
index 2d814cc3b97ec53ef6978aeafdd8f3a1381d7016..2c1b307b673c48af9a1c91a09d956d5de5643b04 100644
--- a/code/debug.lisp
+++ b/code/debug.lisp
@@ -5,7 +5,7 @@
 ;;; Carnegie Mellon University, and has been placed in the public domain.
 ;;;
 (ext:file-comment
-  "$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/code/debug.lisp,v 1.64 2004/08/30 14:55:38 rtoy Exp $")
+  "$Header: /Volumes/share2/src/cmucl/cvs2git/cvsroot/src/code/debug.lisp,v 1.65 2008/05/23 00:01:59 rtoy Exp $")
 ;;;
 ;;; **********************************************************************
 ;;;
@@ -618,7 +618,9 @@ See the CMU Common Lisp User's Manual for more information.
 	object)
     (error (cond)
       (declare (ignore cond))
-      (make-unprintable-object "error printing object"))))
+      (make-unprintable-object
+       (format nil "error printing object {~X}"
+	       (kernel:get-lisp-obj-address object))))))
 
 (defun frame-call-arg (var location frame)
   (lambda-var-dispatch var location