diff --git a/wuttapos/app.py b/wuttapos/app.py
index bc86bde..7d690cf 100644
--- a/wuttapos/app.py
+++ b/wuttapos/app.py
@@ -168,6 +168,7 @@ def main(page: ft.Page):
         threading.excepthook = thread_exc_hook
 
     page.title = f"WuttaPOS v{wuttapos.__version__}"
+    page.window.full_screen = True
 
     # global defaults for button/text styles etc.
     page.data = {
@@ -225,11 +226,6 @@ def main(page: ft.Page):
         elif page.route == '/login':
             page.views.append(LoginView(config, '/login'))
 
-        # nb. setting this "last minute" on page change seems to be
-        # more reliable, otherwise the app doesn't always startup in
-        # full screen for some reason
-        page.window.full_screen = True
-
         page.update()
 
     # TODO: this was in example docs but not sure what it's for?