diff --git a/entry/src/main/ets/controller/KnockController.ets b/entry/src/main/ets/controller/KnockController.ets
index b3dbcd838fc514e845d9108907cfedcddcb98739..f3fa38455e1f8fd77bb99c6a90483743a5099749 100644
--- a/entry/src/main/ets/controller/KnockController.ets
+++ b/entry/src/main/ets/controller/KnockController.ets
@@ -177,6 +177,8 @@ export class KnockController {
                   }
                 } else if (record.uri.endsWith('png') || record.uri.endsWith('jpg') || record.uri.endsWith('jpeg')) {
                   thumbPath = record.uri;
+                } else {
+                  thumbPath = videoDataList[0].thumbnail;
                 }
 
                 videoDataList.push({