diff --git a/docs/definitions.rst b/docs/definitions.rst
index 3e6b72e409bcdd977dd79e0e1a280d73fffb9e77..140ab22a067334040061bd8fcd2cd406aec3555e 100644
--- a/docs/definitions.rst
+++ b/docs/definitions.rst
@@ -1,4 +1,4 @@
 .. SPDX-FileCopyrightText: Huawei Inc.
 ..
 .. SPDX-License-Identifier: CC-BY-4.0
-.. |main_project_name| replace:: All Scenarios OS
+.. |main_project_name| replace:: Oniro Project