diff --git a/ubl-settings-usergroups-system.glade b/ubl-settings-usergroups-system.glade
index 47747a6..1dfbd92 100644
--- a/ubl-settings-usergroups-system.glade
+++ b/ubl-settings-usergroups-system.glade
@@ -167,6 +167,7 @@
                         <property name="sizing">fixed</property>
                         <property name="min-width">50</property>
                         <property name="title" translatable="yes">Login</property>
+                        <property name="sort-column-id">2</property>
                         <child>
                           <object class="GtkCellRendererText"/>
                           <attributes>
@@ -181,6 +182,7 @@
                         <property name="sizing">fixed</property>
                         <property name="min-width">50</property>
                         <property name="title" translatable="yes">Username</property>
+                        <property name="sort-column-id">3</property>
                         <child>
                           <object class="GtkCellRendererText"/>
                           <attributes>
@@ -196,6 +198,7 @@
                         <property name="min-width">50</property>
                         <property name="title" translatable="yes">Primary
 group</property>
+                        <property name="sort-column-id">4</property>
                         <child>
                           <object class="GtkCellRendererText"/>
                           <attributes>
@@ -211,6 +214,7 @@ group</property>
                         <property name="min-width">50</property>
                         <property name="title" translatable="yes">Additional
 groups</property>
+                        <property name="sort-column-id">5</property>
                         <child>
                           <object class="GtkCellRendererText">
                             <property name="wrap-width">150</property>
@@ -226,6 +230,7 @@ groups</property>
                         <property name="min-width">50</property>
                         <property name="title" translatable="yes">Home
 directory</property>
+                        <property name="sort-column-id">6</property>
                         <child>
                           <object class="GtkCellRendererText"/>
                           <attributes>
@@ -238,6 +243,7 @@ directory</property>
                       <object class="GtkTreeViewColumn">
                         <property name="title" translatable="yes">Shell
 path</property>
+                        <property name="sort-column-id">7</property>
                         <child>
                           <object class="GtkCellRendererText"/>
                           <attributes>
@@ -250,6 +256,7 @@ path</property>
                       <object class="GtkTreeViewColumn">
                         <property name="title" translatable="yes">Password has
 been changed</property>
+                        <property name="sort-column-id">8</property>
                         <child>
                           <object class="GtkCellRendererText"/>
                           <attributes>
@@ -262,6 +269,7 @@ been changed</property>
                       <object class="GtkTreeViewColumn">
                         <property name="title" translatable="yes">Expiration
 date</property>
+                        <property name="sort-column-id">9</property>
                         <child>
                           <object class="GtkCellRendererText"/>
                           <attributes>
@@ -274,6 +282,7 @@ date</property>
                       <object class="GtkTreeViewColumn">
                         <property name="title" translatable="yes">Password change
 interval (min)</property>
+                        <property name="sort-column-id">10</property>
                         <child>
                           <object class="GtkCellRendererText"/>
                           <attributes>
@@ -286,6 +295,7 @@ interval (min)</property>
                       <object class="GtkTreeViewColumn">
                         <property name="title" translatable="yes">Password change
 interval (max)</property>
+                        <property name="sort-column-id">11</property>
                         <child>
                           <object class="GtkCellRendererText"/>
                           <attributes>
@@ -298,6 +308,7 @@ interval (max)</property>
                       <object class="GtkTreeViewColumn">
                         <property name="title" translatable="yes">Days until
 warning</property>
+                        <property name="sort-column-id">12</property>
                         <child>
                           <object class="GtkCellRendererText"/>
                           <attributes>
@@ -310,6 +321,7 @@ warning</property>
                       <object class="GtkTreeViewColumn">
                         <property name="title" translatable="yes">Days
 without activity</property>
+                        <property name="sort-column-id">13</property>
                         <child>
                           <object class="GtkCellRendererText"/>
                           <attributes>