diff --git a/apps/com.example.lvgltest/assets/main.py b/apps/com.example.lvgltest/assets/main.py
index 90b93f45..71e44d1c 100644
--- a/apps/com.example.lvgltest/assets/main.py
+++ b/apps/com.example.lvgltest/assets/main.py
@@ -9,7 +9,7 @@ UPDATE_INTERVAL_MS = 3000  # Add spinner and update metrics every 100ms
 spinner_count = 0
 metrics_label = None
 
-canary = lv.obj(lv.screen_active())
+canary = lv.obj(subwindow)
 canary.add_flag(0x0001) # LV_OBJ_FLAG_HIDDEN is 0x0001
 
 def add_spinner_and_update():