diff --git a/panels/screen/cc-screen-panel.c b/panels/screen/cc-screen-panel.c
index e7ecc24b2..35c9aba1a 100644
--- a/panels/screen/cc-screen-panel.c
+++ b/panels/screen/cc-screen-panel.c
@@ -486,6 +486,7 @@ cc_screen_panel_init (CcScreenPanel *self)
                     G_CALLBACK (lock_combo_changed_cb),
                     self);
 
+  widget = WID ("screen_lock_hbox");
   g_settings_bind (self->priv->lock_settings,
                    "lock-enabled",
                    widget, "sensitive",
diff --git a/panels/screen/screen.ui b/panels/screen/screen.ui
index 266448bd1..6ac9a6484 100644
--- a/panels/screen/screen.ui
+++ b/panels/screen/screen.ui
@@ -228,7 +228,7 @@
                           </packing>
                         </child>
                         <child>
-                          <object class="GtkHBox" id="hbox3">
+                          <object class="GtkHBox" id="screen_lock_hbox">
                             <property name="visible">True</property>
                             <property name="spacing">6</property>
                             <child>