1 files changed, 1 insertions, 0 deletions

diff --git a/book.json b/book.json
index da8c185..928f393 100644
--- a/book.json
+++ b/book.json
@@ -1,5 +1,6 @@
 {
     "title": "Application Framework Service",
+    "subtitle": "",
     "description": "Application Framework Service of Automotive Grade Linux",
     "keywords": "AGL, Development, application, framework, service",
     "author": "IoT.Bzh Team",