diff --git a/fm/federation-manager-message-formats.adoc b/fm/federation-manager-message-formats.adoc
index f74aba4..bba7268 100644
--- a/fm/federation-manager-message-formats.adoc
+++ b/fm/federation-manager-message-formats.adoc
@@ -37,11 +37,11 @@ schemas: { collection of schema references for the message format(s) } <1>
 eventType: {create, read, update, delete}
 ----
 <1> In YAML: 
----
+```
 schemas: 
   - s1: http://../.
   - s2: ...
----
+```
 
 [source,js
 ----