diff --git a/books/bookvol5.pamphlet b/books/bookvol5.pamphlet
index b0c5611..9e714e7 100644
--- a/books/bookvol5.pamphlet
+++ b/books/bookvol5.pamphlet
@@ -576,6 +576,7 @@ information is initialized.
#+:akcl (setq compiler::*compile-verbose* nil)
#+:akcl (setq compiler::*suppress-compiler-warnings* t)
#+:akcl (setq compiler::*suppress-compiler-notes* t)
+#+:akcl (setq si::*system-directory* "")
(in-package "BOOT")
(initroot)
#+:akcl
diff --git a/changelog b/changelog
index 94a7379..5bc7cb7 100644
--- a/changelog
+++ b/changelog
@@ -1,3 +1,5 @@
+20120430 tpd src/axiom-website/patches.html 20120430.01.tpd.patch
+20120430 tpd books/bookvol5 reset si::*system-directory* to the null string
20120429 tpd src/axiom-website/patches.html 20120429.01.tpd.patch
20120429 tpd books/bookvol10.5 BLAS1 dnrm2
20120428 tpd src/axiom-website/patches.html 20120428.01.tpd.patch
diff --git a/src/axiom-website/patches.html b/src/axiom-website/patches.html
index ef8a85c..a03e64c 100644
--- a/src/axiom-website/patches.html
+++ b/src/axiom-website/patches.html
@@ -3896,5 +3896,7 @@ books/bookvol10.5 BLAS1 dcopy test cases
books/bookvol10.5 BLAS1 ddot
20120429.01.tpd.patch
books/bookvol10.5 BLAS1 dnrm2
+20120430.01.tpd.patch
+books/bookvol5 reset si::*system-directory* to the null string