diff --git a/book/Makefile b/book/Makefile
index f52fb38..8cf41b2 100644
--- a/book/Makefile
+++ b/book/Makefile
@@ -1,7 +1,7 @@
 TOP=..
 include $(TOP)/Make.rules
 
-TEXPATH=./float:./intro:./rv32:./copyright:./license:./elements
+TEXPATH=./float:./intro:./rv32:./copyright:./license:./elements:binary
 
 SUBDIRS=