diff --git a/README.md b/README.md
index 772009c..7850642 100755
--- a/README.md
+++ b/README.md
@@ -141,7 +141,7 @@
 Cinder volume backups are deleted only when that backup is not makaged by
 Staffeln. Once staffeln API service is up. You can define similar policy as
 following to `/etc/cinder/policy.yaml`:
-```
+```yaml
 "backup:delete" : "rule:admin_api or (project_id:%(project_id)s and
 http://Staffeln-api-url:8808/v1/backup?backup_id=%(id)s)"
 ```
@@ -235,7 +235,7 @@
 provide required authorization shows in `Authentication` section.
 Run
 
-```
+```shell
 openstack volume create --size 1 --image {IMAGE_ID} test-volume
 openstack server create --flavor {FLAVOR_ID} --volume {VOLUME_ID} \
 --property __staffeln_backup=true --property __staffeln_retention=20min \