diff --git a/lib/webhook/index.js b/lib/webhook/index.js
index a285148..f0e3941 100644
--- a/lib/webhook/index.js
+++ b/lib/webhook/index.js
@@ -63,7 +63,7 @@ module.exports = (logger, config, xmpp) => {
       return res.status(404).send('Webhook not found')
     }
     logger.debug(`Webhook received: ${webhook.path}, start action: ${webhook.action}`)
-    logger.trace(req.body)
+    logger.trace(JSON.stringify(req.body))
     switch (webhook.action) {
       case 'send_xmpp_message': {
         // get destination