diff --git a/databasewindow.cpp b/databasewindow.cpp
index b867200..d19a31c 100644
--- a/databasewindow.cpp
+++ b/databasewindow.cpp
@@ -138,14 +138,14 @@ void DatabaseWindow::save() {
     app->add_window( *pw );
 
     t = std::thread( refreshSelectDB, std::ref( changed_rows ), linux, pw );
-    // lambda capture
-    auto app_ptr = app;
-    auto *thread = &t;
+    t.detach();
 
-    pw->signal_hide().connect( [pw, app_ptr, thread]() {
+    // lambda capture
+    auto *app_ptr = app.get();
+
+    pw->signal_hide().connect( [pw, app_ptr]() {
         cleanDB();
         app_ptr->remove_window( *pw );
-        thread->join();
         delete pw;
     } );
 
diff --git a/progress.cpp b/progress.cpp
index 7a821c1..a1ac09f 100644
--- a/progress.cpp
+++ b/progress.cpp
@@ -114,7 +114,7 @@ void ProgressBar::print( const string &t ) {
 
 ProgressBar::~ProgressBar() {
 #ifndef _WIN32
-    static_cast< ProgressWindow * >( ptr )->~ProgressWindow();
+    static_cast< ProgressWindow * >( ptr )->hide();
 #else
     PostMessageW( ptr, WM_APP, 2, 0 );
 #endif