diff --git a/soitool/main_window.py b/soitool/main_window.py
index 042f25a93784dabad3bd5a6a6bb8dd72f517211c..6b406ee872b4f9a386ea437cee1f84566d500580 100644
--- a/soitool/main_window.py
+++ b/soitool/main_window.py
@@ -182,5 +182,5 @@ class ViewArea(QWidget):
 if __name__ == "__main__":
     app = QApplication(sys.argv)
     WINDOW = MainWindow()
-    WINDOW.show()
+    WINDOW.showMaximized()
     app.exec_()