diff --git a/Filer-Change-Data-Capture.md b/Filer-Change-Data-Capture.md
index 11f0f6f..5f52058 100644
--- a/Filer-Change-Data-Capture.md
+++ b/Filer-Change-Data-Capture.md
@@ -5,7 +5,7 @@ Actually SeaweedFS can give you more!
 # Experience it first
 
 You can continuously watch the SeaweedFS meta data changes. Let's also filter with `jq` and see only the new files created:
-```
+```console
 $ weed filer.meta.tail -timeAgo=3h | jq .eventNotification.newEntry
 {
   "name": "abc.png",
@@ -40,7 +40,7 @@ $ weed filer.meta.tail -timeAgo=3h | jq .eventNotification.newEntry
 
 See the help:
 
-```
+```console
 $ weed filer.meta.tail -h
 Example: weed filer.meta.tail [-filer=localhost:8888] [-target=/]
 Default Usage:
@@ -62,7 +62,7 @@ Description:
 ```
 
 If configured Elastic Search server names, the meta data will be sent to Elastic Search
-```
+```console
 $ weed filer.meta.tail -es=http://localhost:9200
 ```