diff --git a/radon.yml b/radon.yml
index 078499b..3468906 100644
--- a/radon.yml
+++ b/radon.yml
@@ -5,8 +5,10 @@
   vars:
     ansible_python_interpreter: /usr/bin/python3
 
+    data_dir: "/srv/data"
+
     mosquitto_image: eclipse-mosquitto:2.0.14
-    mosquitto_data: /srv/data/mosquitto
+    mosquitto_data: "{{ data_dir }}/mosquitto"
 
   roles:
     - role: docker_setup