diff --git a/doc/component-operation-guide-lts/source/conf.py b/doc/component-operation-guide-lts/source/conf.py
index 325a8dd..ee08366 100644
--- a/doc/component-operation-guide-lts/source/conf.py
+++ b/doc/component-operation-guide-lts/source/conf.py
@@ -33,7 +33,7 @@ otcdocs_git_type = 'gitea'
 # Those variables are needed for indexing into OpenSearch
 otcdocs_doc_environment = 'internal'
 otcdocs_doc_link = '/mapreduce-service/operation-guide-lts/'
-otcdocs_doc_title = 'MapReduce Service - Component Operation Guide (LTS)'
+otcdocs_doc_title = 'Component Operation Guide (LTS)'
 otcdocs_doc_type = 'operation-guide-lts'
 otcdocs_service_category = 'big_data'
 otcdocs_service_title = 'MapReduce Service'