diff --git a/adapter/diaglogflow.js b/adapter/diaglogflow.js
index c80b034..88a24c1 100644
--- a/adapter/diaglogflow.js
+++ b/adapter/diaglogflow.js
@@ -56,7 +56,7 @@ const detectIntent = async (queryText) => {
         const { fields } = parsePayload.payload
         media = fields.media.stringValue || null
     }
-    const customPayload = parsePayload['payload']
+    const customPayload = parsePayload ? parsePayload['payload'] : null
 
     const parseData = {
         replyMessage: queryResult.fulfillmentText,