diff --git a/tools/broken-link-checker/run.js b/tools/broken-link-checker/run.js
index a6a67a2a..e82a6afd 100644
--- a/tools/broken-link-checker/run.js
+++ b/tools/broken-link-checker/run.js
@@ -133,7 +133,7 @@ async function urlsFromFiles(options) {
     options.isFork =
       argv.isFork !== undefined
         ? argv.isFork
-        : github.context.payload.pull_request.head.repo.fork;
+        : context.payload.pull_request.head.repo.fork;
     options.skipEditLink = options.isFork;
     urls = await urlsFromPR(options);
   } else if (type === undefined) {