diff --git a/internal_filesystem/apps/com.micropythonos.imageview/assets/imageview.py b/internal_filesystem/apps/com.micropythonos.imageview/assets/imageview.py
index f269c0b2..ae63a705 100644
--- a/internal_filesystem/apps/com.micropythonos.imageview/assets/imageview.py
+++ b/internal_filesystem/apps/com.micropythonos.imageview/assets/imageview.py
@@ -167,6 +167,7 @@ class ImageView(Activity):
     def unfocus(self):
         group = lv.group_get_default()
         if not group:
+            print("WARNING: imageview.py could not get default focus group")
             return
         print("got focus group")
         # group.focus_obj(self.play_button) would be better but appears missing?!