1 files changed, 1 insertions, 1 deletions
diff --git a/documentation/content/ru/books/developers-handbook/introduction/_index.adoc b/documentation/content/ru/books/developers-handbook/introduction/_index.adoc
index d212e92f3a..926cfbca46 100644
--- a/documentation/content/ru/books/developers-handbook/introduction/_index.adoc
+++ b/documentation/content/ru/books/developers-handbook/introduction/_index.adoc
@@ -9,7 +9,7 @@ next: books/developers-handbook/tools
 params:
   path: /books/developers-handbook/introduction/
 prev: books/developers-handbook/parti
-showBookMenu: true
+showBookMenu: 'true'
 tags: ["introduction", "Developing on FreeBSD", "BSD Vision", "Architectural Guidelines"]
 title: 'Глава 1. Введение'
 weight: 2