diff --git a/demos/widget-factory/widget-factory.c b/demos/widget-factory/widget-factory.c
index f04a2c3190..1dd75a4427 100644
--- a/demos/widget-factory/widget-factory.c
+++ b/demos/widget-factory/widget-factory.c
@@ -107,6 +107,13 @@ dismiss (GtkWidget *button)
   gtk_revealer_set_reveal_child (GTK_REVEALER (w), FALSE);
 }
 
+static gboolean
+pulse_it (GtkWidget *widget)
+{
+  gtk_progress_bar_pulse (GTK_PROGRESS_BAR (widget));
+  return TRUE;
+}
+
 int
 main (int argc, char *argv[])
 {
@@ -128,6 +135,9 @@ main (int argc, char *argv[])
   window = GTK_WIDGET (gtk_builder_get_object (builder, "window"));
   gtk_builder_connect_signals (builder, NULL);
 
+  widget = (GtkWidget*) gtk_builder_get_object (builder, "progressbar3");
+  g_timeout_add (250, (GSourceFunc)pulse_it, widget);
+
   widget = (GtkWidget*) gtk_builder_get_object (builder, "darkmenuitem");
   g_signal_connect (widget, "toggled", G_CALLBACK (dark_toggled), NULL);
   gtk_check_menu_item_set_active (GTK_CHECK_MENU_ITEM (widget), dark);
diff --git a/demos/widget-factory/widget-factory.ui b/demos/widget-factory/widget-factory.ui
index b7a1e9ab72..3360b4fb4a 100644
--- a/demos/widget-factory/widget-factory.ui
+++ b/demos/widget-factory/widget-factory.ui
@@ -1271,6 +1271,19 @@ Suspendisse feugiat quam quis dolor accumsan cursus. </property>
                                 <property name="position">1</property>
                               </packing>
                             </child>
+                            <child>
+                              <object class="GtkProgressBar" id="progressbar3">
+                                <property name="visible">True</property>
+                                <property name="can_focus">False</property>
+                                <property name="fraction">0.5</property>
+                                <property name="show_text">True</property>
+                              </object>
+                              <packing>
+                                <property name="expand">False</property>
+                                <property name="fill">False</property>
+                                <property name="position">2</property>
+                              </packing>
+                            </child>
                           </object>
                           <packing>
                             <property name="expand">False</property>