diff --git a/src/site/markdown/design/overview.md b/src/site/markdown/design/overview.md
index 5b4fc7d1750a42be77af45508c4f33cd69a5045a..c7f2320caf9d766d5bdb29e665339d75270fa9f0 100644
--- a/src/site/markdown/design/overview.md
+++ b/src/site/markdown/design/overview.md
@@ -12,7 +12,7 @@
   limitations under the License.
 -->
 
-#Design Overview 
+# Design Overview 
 
 ## Global architecture