diff --git a/website/learn/transaction/sortition/index.md b/website/learn/transaction/sortition/index.md
index 489da567c..a40d9eef4 100644
--- a/website/learn/transaction/sortition/index.md
+++ b/website/learn/transaction/sortition/index.md
@@ -12,7 +12,7 @@ By committing a sortition transaction, the validator will enter the committee.
 Sortition transactions are valid for 7 blocks, which is defined as "sortition interval" in the
 [consensus parameters]({{ site.baseurl }}/learn/consensus/parameters/).
 
-## Payload structure
+## Payload Structure
 
 The sortition transaction has a payload consists the following fields: