diff --git a/docs/admin-guide/container.md b/docs/admin-guide/container.md
index c5116ac5..32810580 100644
--- a/docs/admin-guide/container.md
+++ b/docs/admin-guide/container.md
@@ -19,7 +19,7 @@ If you have problems with connectivity this might be due to the default docker n
 
 ### Docker-ce example
 `/etc/docker/daemon.json`
-```
+```json
 {
   "default-address-pools": [
     {