diff --git a/a1_swap_mod_packer/gui.py b/a1_swap_mod_packer/gui.py
index fc7a378..386f659 100644
--- a/a1_swap_mod_packer/gui.py
+++ b/a1_swap_mod_packer/gui.py
@@ -1448,8 +1448,11 @@ def main() -> int:
     app.setFont(QFont("Segoe UI", 10))
     icon_path = program_root() / "x.png"
     if icon_path.exists():
-        app.setWindowIcon(QIcon(str(icon_path)))
+        icon = QIcon(str(icon_path))
+        app.setWindowIcon(icon)
     window = MainWindow()
+    if icon_path.exists():
+        window.setWindowIcon(QIcon(str(icon_path)))
     window.show()
     return app.exec()