diff --git a/app/src/main/java/org/schabi/newpipe/views/FocusOverlayView.java b/app/src/main/java/org/schabi/newpipe/views/FocusOverlayView.java
index 3d9dbc16a..bd5ae10e8 100644
--- a/app/src/main/java/org/schabi/newpipe/views/FocusOverlayView.java
+++ b/app/src/main/java/org/schabi/newpipe/views/FocusOverlayView.java
@@ -105,7 +105,7 @@ public final class FocusOverlayView extends Drawable implements
         }
     }
 
-    private boolean isShown(final View view) {
+    private boolean isShown(@NonNull final View view) {
         return view.getWidth() != 0 && view.getHeight() != 0 && view.isShown();
     }