diff --git a/scripts/utils/lighthouse-runner.js b/scripts/utils/lighthouse-runner.js
index f6879d8..9246198 100644
--- a/scripts/utils/lighthouse-runner.js
+++ b/scripts/utils/lighthouse-runner.js
@@ -20,7 +20,7 @@ function generateReport(result, outputPath) {
 }
 
 function extractMetrics(result) {
-  const categories = result.reportCategories;
+  const categories = result.lhr?.categories || {};
   return {
     performance: categories.performance?.score * 100 || 0,
     accessibility: categories.accessibility?.score * 100 || 0,