diff --git a/chapter01/changelog.xml b/chapter01/changelog.xml
index 1e0ccb9cc..1f7b0d47e 100644
--- a/chapter01/changelog.xml
+++ b/chapter01/changelog.xml
@@ -123,6 +123,10 @@ First a summary, then a detailed log.
+October 9, 2005 [matt]: Emphasise the fact that one must delete
+the source directory after each package has been installed. Fixes bug 1638.
+Thanks to Chris Staub.
+
October 8, 2005 [archaic]: Added patch to fix poor tempfile
creation in Texinfo-4.8 that can lead to a symlink attack.
diff --git a/chapter05/introduction.xml b/chapter05/introduction.xml
index 404ca5c87..6f82905a1 100644
--- a/chapter05/introduction.xml
+++ b/chapter05/introduction.xml
@@ -46,13 +46,12 @@ deprecated, but not invalid, use of the C or C++ syntax. C standards
change fairly often, and some packages still use the older standard.
This is not a problem, but does prompt the warning.
-After installing each package, delete its source and build
+After installing each package, delete its source and build
directories, unless specifically instructed otherwise. Deleting the
-sources saves space and prevents mis-configuration when the same
-package is reinstalled later. Only three of the packages need to
-retain the source and build directories in order for their contents to
-be used by later commands. Pay special attention to these
-reminders.
+sources prevents mis-configuration when the same package is reinstalled later.
+Only three of the packages need to retain the source and build directories in
+order for their contents to be used by later commands. Pay special attention to
+these reminders.
Check one last time that the LFS environment
variable is set up properly:
diff --git a/general.ent b/general.ent
index e80e58bfc..c4b54cd75 100644
--- a/general.ent
+++ b/general.ent
@@ -1,6 +1,6 @@
-
-
+
+