diff --git a/demos/widget-factory/widget-factory.c b/demos/widget-factory/widget-factory.c
index 1584c134eb..287240254c 100644
--- a/demos/widget-factory/widget-factory.c
+++ b/demos/widget-factory/widget-factory.c
@@ -1637,6 +1637,16 @@ scale_format_value (GtkScale *scale, gdouble value)
   return g_strdup_printf ("%0.*f", 1, value);
 }
 
+static void
+adjustment3_value_changed (GtkAdjustment *adj, GtkProgressBar *pbar)
+{
+  double fraction;
+
+  fraction = gtk_adjustment_get_value (adj) / (gtk_adjustment_get_upper (adj) - gtk_adjustment_get_lower (adj));
+
+  gtk_progress_bar_set_fraction (pbar, fraction);
+}
+
 static void
 activate (GApplication *app)
 {
@@ -1910,6 +1920,12 @@ activate (GApplication *app)
   widget2 = (GtkWidget *)gtk_builder_get_object (builder, "decrease_button");
   g_object_set_data (G_OBJECT (widget), "decrease_button", widget2);
 
+  adj = (GtkAdjustment *)gtk_builder_get_object (builder, "adjustment3");
+  widget = (GtkWidget *)gtk_builder_get_object (builder, "progressbar1");
+  widget2 = (GtkWidget *)gtk_builder_get_object (builder, "progressbar2");
+  g_signal_connect (adj, "value-changed", G_CALLBACK (adjustment3_value_changed), widget);
+  g_signal_connect (adj, "value-changed", G_CALLBACK (adjustment3_value_changed), widget2);
+
   gtk_widget_show_all (GTK_WIDGET (window));
 
   g_object_unref (builder);
diff --git a/demos/widget-factory/widget-factory.ui b/demos/widget-factory/widget-factory.ui
index f540cffd29..300ecf6c71 100644
--- a/demos/widget-factory/widget-factory.ui
+++ b/demos/widget-factory/widget-factory.ui
@@ -103,8 +103,9 @@
     <property name="page_increment">10</property>
   </object>
   <object class="GtkAdjustment" id="adjustment3">
+    <property name="lower">0</property>
     <property name="upper">4</property>
-    <property name="value">1</property>
+    <property name="value">2</property>
     <property name="step_increment">1</property>
     <property name="page_increment">1</property>
   </object>