diff --git a/app_win_2_back.cpp b/app_win_2_back.cpp
index bd005a2..664d573 100644
--- a/app_win_2_back.cpp
+++ b/app_win_2_back.cpp
@@ -63,6 +63,7 @@ namespace gui_to_app {
         auto windows = get_windows();
         for (auto *window: windows) {
             window->set_visible(false);
+            delete window;
         }
         quit();
     }