diff --git a/src/main/content/_config.yml b/src/main/content/_config.yml
index ad957139..be94ba06 100644
--- a/src/main/content/_config.yml
+++ b/src/main/content/_config.yml
@@ -23,6 +23,8 @@ asciidoctor:
     - coderay-css=class
     - allow-uri-read
 
+google_tag_manager: UA-140304192-1
+
 markdown: kramdown
 
 assets: