diff --git a/sbapp/main.py b/sbapp/main.py
index 464e38e..dce8633 100644
--- a/sbapp/main.py
+++ b/sbapp/main.py
@@ -24,6 +24,9 @@ import base64
 import threading
 import RNS.vendor.umsgpack as msgpack
 
+WINDOW_DEFAULT_WIDTH  = "480"
+WINDOW_DEFAULT_HEIGHT = "750"
+
 app_ui_scaling_path = None
 def apply_ui_scale():
     global app_ui_scaling_path
@@ -171,6 +174,11 @@ if not args.daemon:
         local = os.path.dirname(__file__)
         sys.path.append(local)
 
+    if not RNS.vendor.platformutils.is_android():
+        from kivy.config import Config
+        Config.set("graphics", "width", WINDOW_DEFAULT_WIDTH)
+        Config.set("graphics", "height", WINDOW_DEFAULT_HEIGHT)
+
 if args.daemon:
     from .sideband.core import SidebandCore
     class DaemonElement():