diff --git a/release/doc/en_US.ISO8859-1/installation/common/upgrade.sgml b/release/doc/en_US.ISO8859-1/installation/common/upgrade.sgml
index 6e7129383e45..ab6db103a25e 100644
--- a/release/doc/en_US.ISO8859-1/installation/common/upgrade.sgml
+++ b/release/doc/en_US.ISO8859-1/installation/common/upgrade.sgml
@@ -94,6 +94,7 @@
 <filename>namedb</filename>,
 <filename>networks</filename>,
 <filename>newsyslog.conf</filename>,
+<filename>nsmb.conf</filename>,
 <filename>nsswitch.conf</filename>,
 <filename>pam.conf</filename>,
 <filename>passwd</filename>,