diff --git a/autoloads/options.gd b/autoloads/options.gd
index f7b3ba8..3084c05 100644
--- a/autoloads/options.gd
+++ b/autoloads/options.gd
@@ -118,7 +118,8 @@ func save_options() -> void:
 # video setters
 func _set_fullscreen(value: bool) -> void:
 	fullscreen = value
-	OS.window_fullscreen = fullscreen
+	if Engine.get_idle_frames() == 0:
+		OS.window_fullscreen = fullscreen
 
 func _set_window_size(value: float) -> void:
 	window_size = value