diff --git a/services/review.go b/services/review.go
index 8d8f441..1120fee 100644
--- a/services/review.go
+++ b/services/review.go
@@ -92,7 +92,7 @@ func GenerateReview(db *sql.DB, repoPath, base, head string, topN int, callback
 
 	// Notify frontend of file count info
 	if callback != nil {
-		callback("progress", map[string]interface{}{
+		callback("start", map[string]interface{}{
 			"total_files":    totalFiles,
 			"reviewed_files": reviewedFiles,
 			"top_n":          topN,