diff --git a/templates/services/userdata.yml.j2 b/templates/services/userdata.yml.j2
index 765dd1d..512a8a6 100644
--- a/templates/services/userdata.yml.j2
+++ b/templates/services/userdata.yml.j2
@@ -51,7 +51,7 @@ write_files:
 
   - path: /root/.docker/config.json
     content: |
-      {{ inst.docker_auth_config | default(droneci_autoscaler_docker_auth_config) | indent(width=6, indentfirst=False) }}
+      {{ inst.docker_auth_config | default(droneci_autoscaler_docker_auth_config) | to_nice_json | indent(width=6, indentfirst=False) }}
   {% endif %}
 
   - path: /etc/drone.conf