--- a/src/resources/ui/virt-viewer.ui	2022-02-14 10:01:18.966133177 +0800
+++ b/src/resources/ui/virt-viewer.ui	2022-02-14 10:01:28.372271443 +0800
@@ -137,9 +137,9 @@
     </child>
     <child type="titlebar">
       <object class="GtkHeaderBar" id="header">
-        <property name="visible">True</property>
+        <property name="visible">False</property>
         <property name="can-focus">False</property>
-        <property name="show-close-button">True</property>
+        <property name="show-close-button">False</property>
         <child>
           <object class="GtkMenuButton" id="header-action">
             <property name="visible">True</property>