diff --git a/apps/meteor/app/livechat/server/sendMessageBySMS.js b/apps/meteor/app/livechat/server/sendMessageBySMS.js
index c3c44b9a3bc0..e561c5faff06 100644
--- a/apps/meteor/app/livechat/server/sendMessageBySMS.js
+++ b/apps/meteor/app/livechat/server/sendMessageBySMS.js
@@ -63,7 +63,7 @@ callbacks.add(
 
 		if (message.customFields && message.customFields.contentVariables) {
 			const { contentVariables } = message.customFields;
-			extraData = Object.assign({}, extraData, { ...contentVariables });
+			extraData = Object.assign({}, extraData, { contentVariables });
 		}
 
 		if (message.customFields && message.customFields.messagingServiceSid) {