diff --git a/books/Makefile b/books/Makefile
index 62d76278a7f..4bf67e3f0c2 100644
--- a/books/Makefile
+++ b/books/Makefile
@@ -1,6 +1,7 @@
-# $OpenBSD: Makefile,v 1.17 2010/05/01 20:47:44 steven Exp $
+# $OpenBSD: Makefile,v 1.18 2010/05/11 00:16:54 sthen Exp $
 
      SUBDIR =
+     SUBDIR += AsteriskGuide
      SUBDIR += AsteriskTFOT
      SUBDIR += JLS
      SUBDIR += JVMS