diff --git a/src/ui/account-overview.ui b/src/ui/account-overview.ui
index 09377a9..e4d8369 100644
--- a/src/ui/account-overview.ui
+++ b/src/ui/account-overview.ui
@@ -6,7 +6,7 @@
     <property name="visible">True</property>
     <property name="default-width">380</property>
     <property name="default-height">660</property>
-    <signal name="delete-event" handler="gtk_widget_hide_on_delete"/>
+    <property name="hide-on-close">True</property>
     <child>
       <object class="GtkBox">
         <property name="orientation">vertical</property>
@@ -98,6 +98,6 @@
     <property name="visible">False</property>
     <property name="default-width">380</property>
     <property name="default-height">660</property>
-    <signal name="delete-event" handler="gtk_widget_hide_on_delete"/>
+    <property name="hide-on-close">True</property>
   </object>
 </interface>
diff --git a/src/ui/call-window.ui b/src/ui/call-window.ui
index 05ad790..5a9f342 100644
--- a/src/ui/call-window.ui
+++ b/src/ui/call-window.ui
@@ -4,7 +4,7 @@
   <template class="CallsCallWindow" parent="GtkApplicationWindow">
     <property name="hide_titlebar_when_maximized">True</property>
     <property name="title" translatable="yes">Calls</property>
-    <signal name="delete-event" handler="gtk_widget_hide_on_delete"/>
+    <property name="hide-on-close">True</property>
     <child>
       <object class="GtkOverlay">
         <child type="overlay">
diff --git a/src/ui/main-window.ui b/src/ui/main-window.ui
index ba4a589..55cda63 100644
--- a/src/ui/main-window.ui
+++ b/src/ui/main-window.ui
@@ -6,7 +6,7 @@
     <property name="title" translatable="yes">Calls</property>
     <property name="hide_titlebar_when_maximized">True</property>
     <property name="show_menubar">False</property>
-    <signal name="delete-event" handler="gtk_widget_hide_on_delete"/>
+    <property name="hide-on-close">True</property>
     <child>
       <object class="GtkBox">
         <property name="orientation">vertical</property>
@@ -84,7 +84,7 @@
     <property name="modal">True</property>
     <property name="default-width">240</property>
     <property name="default-height">200</property>
-    <signal name="delete-event" handler="gtk_widget_hide_on_delete" object="ussd_dialog" swapped="yes"/>
+    <property name="hide-on-close">True</property>
     <child type="titlebar">
       <object class="AdwHeaderBar">
         <property name="visible">True</property>