diff --git a/src/charon/plugins/nm/gnome/properties/nm-strongswan-dialog.glade b/src/charon/plugins/nm/gnome/properties/nm-strongswan-dialog.glade
index 03a94e973..91a00d6f5 100644
--- a/src/charon/plugins/nm/gnome/properties/nm-strongswan-dialog.glade
+++ b/src/charon/plugins/nm/gnome/properties/nm-strongswan-dialog.glade
@@ -8,10 +8,12 @@
       <widget class="GtkVBox" id="strongswan-vbox">
         <property name="visible">True</property>
         <property name="border_width">12</property>
+        <property name="orientation">vertical</property>
         <property name="spacing">16</property>
         <child>
           <widget class="GtkVBox" id="gateway-vbox">
             <property name="visible">True</property>
+            <property name="orientation">vertical</property>
             <property name="spacing">6</property>
             <child>
               <widget class="GtkLabel" id="gateway-label">
@@ -106,6 +108,7 @@
         <child>
           <widget class="GtkVBox" id="client-vbox">
             <property name="visible">True</property>
+            <property name="orientation">vertical</property>
             <property name="spacing">6</property>
             <child>
               <widget class="GtkLabel" id="client-label">
@@ -256,6 +259,7 @@
         <child>
           <widget class="GtkVBox" id="options-vbox">
             <property name="visible">True</property>
+            <property name="orientation">vertical</property>
             <property name="spacing">6</property>
             <child>
               <widget class="GtkLabel" id="options-label">
@@ -277,6 +281,7 @@
                 <child>
                   <widget class="GtkVBox" id="options-inner-vbox">
                     <property name="visible">True</property>
+                    <property name="orientation">vertical</property>
                     <child>
                       <widget class="GtkCheckButton" id="virtual-check">
                         <property name="label" translatable="yes">Request an _inner IP address</property>