diff --git a/docs/en/02-intro/index.md b/docs/en/02-intro/index.md
index cee369d1b9..f9fe68b47a 100644
--- a/docs/en/02-intro/index.md
+++ b/docs/en/02-intro/index.md
@@ -8,7 +8,7 @@ TDengine is a big data platform designed and optimized for IoT (Internet of Thin
 
 This section introduces the major features, competitive advantages, typical use-cases and benchmarks to help you get a high level overview of TDengine.
 
-## Major Features
+## Major Features of TDengine OSS
 
 The major features are listed below:
 
@@ -137,4 +137,4 @@ As a high-performance, scalable and SQL supported time-series database, TDengine
 
 There are two products offered by TDengine: TDengine Enterprise and TDengine Cloud, for details please refer to 
 - [TDengine Enterprise](https://www.taosdata.com/tdengine-pro)
-- [TDengine Cloud](https://cloud.taosdata.com/?utm_source=menu&utm_medium=webcn)
\ No newline at end of file
+- [TDengine Cloud](https://cloud.taosdata.com/?utm_source=menu&utm_medium=webcn)