diff --git a/OpenUtau/Views/MainWindow.axaml.cs b/OpenUtau/Views/MainWindow.axaml.cs
index e895c1d5a..dc9b918c2 100644
--- a/OpenUtau/Views/MainWindow.axaml.cs
+++ b/OpenUtau/Views/MainWindow.axaml.cs
@@ -562,7 +562,6 @@ public async Task OpenSingersWindowAsync() {
                     });
 
                     dialog = new SingersDialog() { DataContext = vm };
-                    dialog.Show();
                 }
                 if (dialog.Position.Y < 0) {
                     dialog.Position = dialog.Position.WithY(0);
@@ -573,10 +572,18 @@ public async Task OpenSingersWindowAsync() {
                 LoadingWindow.EndLoading();
             }
             if (dialog != null) {
-                dialog.Activate();
+                ShowToolWindow(dialog);
             }
         }
 
+        private static void ShowToolWindow(Window window) {
+            if (window.WindowState == WindowState.Minimized) {
+                window.WindowState = WindowState.Normal;
+            }
+            window.Show();
+            window.Activate();
+        }
+
         async void OnMenuInstallSinger(object sender, RoutedEventArgs args) {
             var file = await FilePicker.OpenFileAboutSinger(
                 this, "menu.tools.singer.install", FilePicker.ArchiveFiles);
@@ -682,7 +689,7 @@ void OnMenuDebugWindow(object sender, RoutedEventArgs args) {
             if (window == null) {
                 window = new DebugWindow();
             }
-            window.Show();
+            ShowToolWindow(window);
         }
 
         void OnMenuPhoneticAssistant(object sender, RoutedEventArgs args) {
@@ -694,7 +701,7 @@ void OnMenuPhoneticAssistant(object sender, RoutedEventArgs args) {
             if (window == null) {
                 window = new PhoneticAssistant();
             }
-            window.Show();
+            ShowToolWindow(window);
         }
 
         void OnMenuCheckUpdate(object sender, RoutedEventArgs args) {