diff --git a/ru_RU.KOI8-R/books/Makefile b/ru_RU.KOI8-R/books/Makefile
index 6f306f76b8..423a168fad 100644
--- a/ru_RU.KOI8-R/books/Makefile
+++ b/ru_RU.KOI8-R/books/Makefile
@@ -2,8 +2,9 @@
 
 SUBDIR = faq
 SUBDIR+= porters-handbook
+SUBDIR+= ppp-primer
 
-ROOT_SYMLINKS = faq porters-handbook
+ROOT_SYMLINKS = faq porters-handbook ppp-primer
 
 DOC_PREFIX?= ${.CURDIR}/../..
 .include "${DOC_PREFIX}/share/mk/doc.project.mk"