diff --git a/site/src/site/sphinx/en/release-notes.md b/site/src/site/sphinx/en/release-notes.md
index d835a02eb..b2b0162bb 100644
--- a/site/src/site/sphinx/en/release-notes.md
+++ b/site/src/site/sphinx/en/release-notes.md
@@ -38,7 +38,7 @@ v2017-09-11
 v2017-05-11
 ----
 
-* [improvement] [`tt`](tt.md) investigating/recording level one to avoid too much performance overhea
+* [improvement] [`tt`](tt.md) investigating/recording level one to avoid too much performance overhead
 * [bug] fix Chinese characters can not be presented issue
 
 v2017-05-12