diff --git a/api-ref/source/conf.py b/api-ref/source/conf.py
index 3967284..c0bd4b2 100644
--- a/api-ref/source/conf.py
+++ b/api-ref/source/conf.py
@@ -30,17 +30,6 @@ otcdocs_repo_name = 'docs/document-database-service'
 otcdocs_git_fqdn = 'gitea.eco.tsi-dev.otc-service.com'
 otcdocs_git_type = 'gitea'
 
-# Those variables are needed for indexing into OpenSearch
-otcdocs_doc_environment = 'internal'
-otcdocs_doc_link = '/document-database-service/api-ref/'
-otcdocs_doc_title = 'API Reference'
-otcdocs_doc_type = 'api-ref'
-otcdocs_service_category = 'database'
-otcdocs_service_title = 'Document Database Service'
-otcdocs_service_type = 'dds'
-otcdocs_search_environment = 'hc_de'
-otcdocs_search_url = "https://opensearch.eco.tsi-dev.otc-service.com/"
-
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
@@ -109,4 +98,9 @@ html_static_path = ['_static']
 html_copy_source = False
 
 # -- Options for PDF output --------------------------------------------------
-latex_documents = []
+latex_documents = [
+    ('index',
+     'None.tex',
+     u'Document Database Service - API Reference',
+     u'OpenTelekomCloud', 'manual'),
+]