diff --git a/wezterm.lua b/wezterm.lua
index 749eac7..41bfc99 100644
--- a/wezterm.lua
+++ b/wezterm.lua
@@ -1,5 +1,11 @@
 local wezterm = require("wezterm")
 
+local mux = wezterm.mux
+wezterm.on("gui-startup", function(cmd)
+    local tab, pane, window = mux.spawn_window(cmd or {})
+    window:gui_window():maximize()
+end)
+
 local config = {
 	default_prog = default_prog,
 
@@ -11,7 +17,6 @@ local config = {
 
 	initial_rows = nil,
 	initial_cols = nil,
-	window_startup_mode = "Maximized",
 
 	color_scheme = "Ayu Dark (Gogh)",
 	background = {