diff --git a/STranslate/Views/Preference/Service/TextOpenAIServicesPage.xaml b/STranslate/Views/Preference/Service/TextOpenAIServicesPage.xaml
index d50da8a5..47245350 100644
--- a/STranslate/Views/Preference/Service/TextOpenAIServicesPage.xaml
+++ b/STranslate/Views/Preference/Service/TextOpenAIServicesPage.xaml
@@ -64,7 +64,8 @@
                              common:BoundPasswordBox.Attach="True"
                              common:BoundPasswordBox.Password="{Binding AppKey, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}"
                              Tag="API Key"
-                             ToolTip="{Binding AppKey}" />
+                             ToolTip="{Binding AppKey}"
+                             Visibility="{Binding KeyHide, Converter={StaticResource BooleanToVisibilityConverter}}" />
 
                 <Button Grid.Column="2"
                         Command="{Binding ShowEncryptInfoCommand}"