diff --git a/docs/hacking-guide/en/book.json b/docs/hacking-guide/en/book.json
index 0d6ce8b0a4..1886b68e04 100644
--- a/docs/hacking-guide/en/book.json
+++ b/docs/hacking-guide/en/book.json
@@ -3,6 +3,7 @@
     "description": "ActiveMQ Artemis Hacking Guide",
     "github": "apache/activemq-artemis",
     "githubHost": "https://github.com/",
+    "gitbook": "2.x.x",
     "links": {
         "home": "http://activemq.apache.org/",
         "issues": "http://activemq.apache.org/",
diff --git a/docs/user-manual/en/book.json b/docs/user-manual/en/book.json
index 9ac38ce12d..073aefd699 100644
--- a/docs/user-manual/en/book.json
+++ b/docs/user-manual/en/book.json
@@ -3,9 +3,10 @@
     "description": "ActiveMQ Artemis User Guide and Reference Documentation",
     "github": "apache/activemq-artemis",
     "githubHost": "https://github.com/",
+    "gitbook": "2.x.x",
     "links": {
         "home": "http://activemq.apache.org/",
         "issues": "http://activemq.apache.org/",
         "contribute": "http://activemq.apache.org/contributing.html"
     }
-}
\ No newline at end of file
+}