diff --git a/app/src/leanback/java/com/fongmi/android/tv/ui/activity/DetailActivity.java b/app/src/leanback/java/com/fongmi/android/tv/ui/activity/DetailActivity.java
index 6b30bf68f..33edc43b3 100644
--- a/app/src/leanback/java/com/fongmi/android/tv/ui/activity/DetailActivity.java
+++ b/app/src/leanback/java/com/fongmi/android/tv/ui/activity/DetailActivity.java
@@ -182,7 +182,7 @@ public class DetailActivity extends BaseActivity implements CustomKeyDownVod.Lis
     }
 
     private boolean isFromCollect() {
-        return getCallingActivity().getShortClassName().contains(CollectActivity.class.getSimpleName());
+        return getCallingActivity() != null && getCallingActivity().getShortClassName().contains(CollectActivity.class.getSimpleName());
     }
 
     @Override