diff --git a/lib/plugin/pl_player/controller.dart b/lib/plugin/pl_player/controller.dart
index 6c523a55..3494f9b4 100644
--- a/lib/plugin/pl_player/controller.dart
+++ b/lib/plugin/pl_player/controller.dart
@@ -1337,7 +1337,10 @@ class PlPlayerController {
     if (res["data"].length == 0) {
       return;
     }
-    _vttSubtitles.value = await VideoHttp.vttSubtitles(res["data"]);
+    var result = await VideoHttp.vttSubtitles(res["data"]);
+    if (result != null) {
+      _vttSubtitles.value = result;
+    }
     // if (_vttSubtitles.isEmpty) {
     //   SmartDialog.showToast('字幕均加载失败');
     // }