diff --git a/workstation.yml b/workstation.yml
index 83df92b8d1a9d9e7f11a55d92286864ea7283650..7b4c0342544f32de8207b451865b993c6a00f560 100644
--- a/workstation.yml
+++ b/workstation.yml
@@ -86,7 +86,7 @@
 
   - name: Configure Docker graph directory
     copy:
-        content: "{{ {'data-root': docker_graph_directory}|to_json }}"
+        content: "{{ {'data-root': docker_graph_directory}|to_nice_json }}"
         dest: /etc/docker/daemon.json
         owner: root
         group: root