diff --git a/en_US.ISO8859-1/books/porters-handbook/uses/chapter.xml b/en_US.ISO8859-1/books/porters-handbook/uses/chapter.xml
index d0a151e3eb..4dfa7309f7 100644
--- a/en_US.ISO8859-1/books/porters-handbook/uses/chapter.xml
+++ b/en_US.ISO8859-1/books/porters-handbook/uses/chapter.xml
@@ -478,6 +478,16 @@
make for the build.
+
+ gperf
+
+ (none)
+
+ Add a buildtime dependency on devel/gperf depending on its
+ presence in the base system.
+
+
gssapi