diff --git a/src/zenity.ui b/src/zenity.ui
index 0255610..5573bbd 100644
--- a/src/zenity.ui
+++ b/src/zenity.ui
@@ -7,7 +7,6 @@
     <property name="title" translatable="yes">Calendar selection</property>
     <property name="window_position">center</property>
     <property name="type_hint">dialog</property>
-    <property name="has_separator">False</property>
     <signal name="destroy" handler="gtk_main_quit"/>
     <child internal-child="vbox">
       <object class="GtkVBox" id="dialog-vbox2">
@@ -128,7 +127,6 @@
     <property name="title" translatable="yes">Warning</property>
     <property name="window_position">center</property>
     <property name="type_hint">dialog</property>
-    <property name="has_separator">False</property>
     <signal name="destroy" handler="gtk_main_quit"/>
     <child internal-child="vbox">
       <object class="GtkVBox" id="dialog-vbox1">
@@ -211,7 +209,6 @@
     <property name="title" translatable="yes">Question</property>
     <property name="window_position">center</property>
     <property name="type_hint">dialog</property>
-    <property name="has_separator">False</property>
     <signal name="destroy" handler="gtk_main_quit"/>
     <child internal-child="vbox">
       <object class="GtkVBox" id="dialog-vbox3">
@@ -275,7 +272,6 @@
     <property name="title" translatable="yes">Add a new entry</property>
     <property name="window_position">center</property>
     <property name="type_hint">dialog</property>
-    <property name="has_separator">False</property>
     <signal name="destroy" handler="gtk_main_quit"/>
     <child internal-child="vbox">
       <object class="GtkVBox" id="dialog-vbox4">
@@ -373,7 +369,6 @@
     <property name="default_width">300</property>
     <property name="default_height">200</property>
     <property name="type_hint">dialog</property>
-    <property name="has_separator">False</property>
     <signal name="destroy" handler="gtk_main_quit"/>
     <child internal-child="vbox">
       <object class="GtkVBox" id="dialog-vbox5">
@@ -450,7 +445,6 @@
     <property name="title" translatable="yes">Progress</property>
     <property name="window_position">center</property>
     <property name="type_hint">dialog</property>
-    <property name="has_separator">False</property>
     <signal name="destroy" handler="gtk_main_quit"/>
     <child internal-child="vbox">
       <object class="GtkVBox" id="dialog-vbox6">
@@ -545,7 +539,6 @@
     <property name="title" translatable="yes">Error</property>
     <property name="window_position">center</property>
     <property name="type_hint">dialog</property>
-    <property name="has_separator">False</property>
     <signal name="destroy" handler="gtk_main_quit"/>
     <child internal-child="vbox">
       <object class="GtkVBox" id="dialog-vbox7">
@@ -636,7 +629,6 @@
     <property name="default_width">300</property>
     <property name="default_height">196</property>
     <property name="type_hint">dialog</property>
-    <property name="has_separator">False</property>
     <signal name="destroy" handler="gtk_main_quit"/>
     <child internal-child="vbox">
       <object class="GtkVBox" id="dialog-vbox8">
@@ -736,7 +728,6 @@
     <property name="title" translatable="yes">Information</property>
     <property name="window_position">center</property>
     <property name="type_hint">dialog</property>
-    <property name="has_separator">False</property>
     <signal name="destroy" handler="gtk_main_quit"/>
     <child internal-child="vbox">
       <object class="GtkVBox" id="dialog-vbox9">
@@ -818,7 +809,6 @@
     <property name="default_width">300</property>
     <property name="default_height">100</property>
     <property name="type_hint">dialog</property>
-    <property name="has_separator">False</property>
     <signal name="destroy" handler="gtk_main_quit"/>
     <child internal-child="vbox">
       <object class="GtkVBox" id="dialog-vbox11">
@@ -917,7 +907,6 @@
   <object class="GtkDialog" id="zenity_forms_dialog">
     <property name="border_width">5</property>
     <property name="type_hint">normal</property>
-    <property name="has_separator">False</property>
     <child internal-child="vbox">
       <object class="GtkVBox" id="dialog-vbox12">
         <property name="visible">True</property>