diff --git a/tasks/main.yml b/tasks/main.yml
index 63a56df..bf90d43 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -22,7 +22,8 @@
     password: '{{ opdk_user_pass }}'
     method: POST
     status_code: 200
-    body_format: raw
+    body_format: json
     url: http://{{ public_mgmt_ip }}:{{ ms_ext_mgmt_port }}/v1/servers/{{ uuid }}
-    body: 'reachable={{ reachable }}'
+    body:
+      reachable: '{{ reachable }}'
   when: uuid is defined
\ No newline at end of file