diff --git a/doc/Makefile b/doc/Makefile
index 67aa5b6a..6820f933 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -1,5 +1,6 @@
 CHAPTERS := $(SITE) blurb intro gs using config pscp psftp plink pubkey
 CHAPTERS += pageant errors faq feedback licence
+CHAPTERS += index
 
 INPUTS = $(patsubst %,%.but,$(CHAPTERS))