diff --git a/src/reference/asciidoc/channel-adapter.adoc b/src/reference/asciidoc/channel-adapter.adoc
index 47ae4c150a..c1d741d404 100644
--- a/src/reference/asciidoc/channel-adapter.adoc
+++ b/src/reference/asciidoc/channel-adapter.adoc
@@ -53,7 +53,6 @@ public class SourceService {
     }
 }
 ----
-====
 [source, kotlin, role="secondary"]
 .Kotlin DSL
 ----
@@ -64,8 +63,6 @@ fun messageSourceFlow() =
         ...
     }
 ----
-====
-----
 [source, xml, role="secondary"]
 .XML
 ----
@@ -157,7 +154,6 @@ public class MyPojo {
 
 }
 ----
-====
 [source, kotlin, role="secondary"]
 .Kotlin DSL
 ----
@@ -167,8 +163,6 @@ fun outboundChannelAdapterFlow(myPojo: MyPojo) =
         handle(myPojo, "handle")
     }
 ----
-====
-----
 [source, xml, role="secondary"]
 .XML
 ----