diff --git a/lib/ui/detail_page.dart b/lib/ui/detail_page.dart
index 75262de22e2cfab7498b27a9ec317e2df8ada246..61f50d94363b65a1cd5f1b6b74ba8aaf143543cf 100644
--- a/lib/ui/detail_page.dart
+++ b/lib/ui/detail_page.dart
@@ -89,7 +89,7 @@ class _DetailPageState extends State<DetailPage> {
 
   AppBar _buildAppBar() {
     final actions = List<Widget>();
-    if (widget.photos[_selectedIndex].localId != null) {
+    if (_photos[_selectedIndex].localId != null) {
       actions.add(_getFavoriteButton());
     }
     actions.add(IconButton(