diff --git a/en_US.ISO8859-1/books/Makefile b/en_US.ISO8859-1/books/Makefile
index 3e4c17b608..9463b26c10 100644
--- a/en_US.ISO8859-1/books/Makefile
+++ b/en_US.ISO8859-1/books/Makefile
@@ -7,6 +7,7 @@ SUBDIR+= developers-handbook
 SUBDIR+= faq
 SUBDIR+= fdp-primer
 SUBDIR+= handbook
+SUBDIR+= pmake
 SUBDIR+= porters-handbook
 
 ROOT_SYMLINKS= faq handbook