diff --git a/README.adoc b/README.adoc
index add88b6..de007f0 100644
--- a/README.adoc
+++ b/README.adoc
@@ -43,7 +43,7 @@ An artifact pointer could be described as a JSON file, e.g.:
 
 .timestamps.txt.jartptr
 [source,json]
-=====
+----
 {
     "fingerprint" : "<md5sum of original file>",
     "uri" : "https://some/external/uri",
@@ -53,7 +53,7 @@ An artifact pointer could be described as a JSON file, e.g.:
         "ctime" : "2018-01-04 17:00:00Z"
     }
 }
-====
+----
 
 Jenkins could then identify this file as such, and link a `timestamps.txt` in
 the web UI directly to the `uri` attribute defined in the `.jartptr` manifest.