diff --git a/proposals/MSCZZZZ-matrix-for-the-social-media-use-case.md b/proposals/MSCZZZZ-matrix-for-the-social-media-use-case.md
index 94ffa09dc..66c886ec1 100644
--- a/proposals/MSCZZZZ-matrix-for-the-social-media-use-case.md
+++ b/proposals/MSCZZZZ-matrix-for-the-social-media-use-case.md
@@ -335,7 +335,7 @@ There has been some discussion about whether we should restrict the
 room to a specific type of content (i.e. the type of the room define
 the UI and how the content should be treated). Here is some consideration about the alternative proposal.
 
-## Advantage of this approach (the main one)
+### Advantage of this approach (the main one)
 
 * flexibility