diff --git a/src/ts/messaging.ts b/src/ts/messaging.ts
index a783ff2..dc393a1 100644
--- a/src/ts/messaging.ts
+++ b/src/ts/messaging.ts
@@ -138,7 +138,7 @@ export const setInitialData = (json: string): void => {
     ?.addLiveChatTextMessageFromTemplateAction?.template
     ?.liveChatTextMessageRenderer ?? {
     authorName: {
-      simpleText: parsedJson.continuationContents?.liveChatContinuation?.viewerName
+      simpleText: parsedJson?.continuationContents?.liveChatContinuation?.viewerName
     }
   };