diff --git a/web/apps/photos/src/services/face/indexer.ts b/web/apps/photos/src/services/face/indexer.ts
index 7fa6c2b874..1b1a01d6ed 100644
--- a/web/apps/photos/src/services/face/indexer.ts
+++ b/web/apps/photos/src/services/face/indexer.ts
@@ -147,7 +147,9 @@ export interface FaceIndexingStatus {
      *   library.
      */
     phase: "scheduled" | "indexing" | "clustering" | "done";
+    /** The number of files that have already been indexed. */
     nSyncedFiles: number;
+    /** The total number of files that are eligible for indexing. */
     nTotalFiles: number;
 }