diff --git a/deluge/ui/gtk3/glade/preferences_dialog.ui b/deluge/ui/gtk3/glade/preferences_dialog.ui
index 3c83997d8..1882521fd 100644
--- a/deluge/ui/gtk3/glade/preferences_dialog.ui
+++ b/deluge/ui/gtk3/glade/preferences_dialog.ui
@@ -2862,6 +2862,7 @@ The network interface name or IP address for outgoing BitTorrent connections. (L
                                                 <property name="sensitive">False</property>
                                                 <property name="can_focus">True</property>
                                                 <property name="max_length">5</property>
+                                                <property name="width_chars">7</property>
                                                 <property name="primary_icon_activatable">False</property>
                                                 <property name="secondary_icon_activatable">False</property>
                                                 <property name="adjustment">adjustment_spin_outgoing_port_min</property>
@@ -2894,6 +2895,7 @@ The network interface name or IP address for outgoing BitTorrent connections. (L
                                                 <property name="sensitive">False</property>
                                                 <property name="can_focus">True</property>
                                                 <property name="max_length">5</property>
+                                                <property name="width_chars">7</property>
                                                 <property name="primary_icon_activatable">False</property>
                                                 <property name="secondary_icon_activatable">False</property>
                                                 <property name="adjustment">adjustment_spin_outgoing_port_max</property>