diff --git a/lazy_player/__init__.py b/lazy_player/__init__.py
index 715f236..6210b3c 100644
--- a/lazy_player/__init__.py
+++ b/lazy_player/__init__.py
@@ -20,10 +20,10 @@ class MainWindow(Gtk.ApplicationWindow):
 
         # Main horizontal box to split the screen
         main_box = Gtk.Box(orientation=Gtk.Orientation.HORIZONTAL)
-        main_box.set_homogeneous(True)  # Make both halves equal size
 
         # Left half - File list
         left_box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL)
+        left_box.set_hexpand(True)
 
         # Create list store and view
         list_store = Gtk.StringList()
@@ -51,6 +51,7 @@ class MainWindow(Gtk.ApplicationWindow):
         right_box.set_halign(Gtk.Align.CENTER)
         right_label = Gtk.Label(label="Right Side")
         right_box.append(right_label)
+        right_box.set_hexpand(True)
 
         # Add both halves to main box
         main_box.append(left_box)