diff --git a/lib/pages/video/detail/introduction/widgets/season.dart b/lib/pages/video/detail/introduction/widgets/season.dart
index f15f62a1..c0adc7bc 100644
--- a/lib/pages/video/detail/introduction/widgets/season.dart
+++ b/lib/pages/video/detail/introduction/widgets/season.dart
@@ -173,9 +173,9 @@ class _SeasonPanelState extends State<SeasonPanel> {
                               bottom: MediaQuery.of(context).padding.bottom),
                           child: Material(
                             child: ScrollablePositionedList.builder(
-                              itemCount: episodes.length,
+                              itemCount: episodes!.length,
                               itemBuilder: (BuildContext context, int index) {
-                                bool isLastItem = index == episodes.length - 1;
+                                bool isLastItem = index == episodes!.length - 1;
                                 bool isCurrentIndex = currentIndex == index;
                                 return isLastItem
                                     ? SizedBox(
@@ -185,7 +185,7 @@ class _SeasonPanelState extends State<SeasonPanel> {
                                             20,
                                       )
                                     : buildEpisodeListItem(
-                                        episodes[index],
+                                        episodes![index],
                                         index,
                                         isCurrentIndex,
                                       );