diff --git a/book.asciidoc b/book.asciidoc
index 7ca0d98b..c57cf7d3 100644
--- a/book.asciidoc
+++ b/book.asciidoc
@@ -22,4 +22,6 @@ include::ch08.asciidoc[]
 
 include::ch09.asciidoc[]
 
-include::appdx-scriptops.asciidoc[]
\ No newline at end of file
+include::appdx-scriptops.asciidoc[]
+
+include::appdx-sx.asciidoc[]
\ No newline at end of file