diff --git a/gtk/Gtk.metadata b/gtk/Gtk.metadata
index fc0cdbe5c..f68e7964d 100644
--- a/gtk/Gtk.metadata
+++ b/gtk/Gtk.metadata
@@ -100,6 +100,7 @@
   <attr path="/api/namespace/object[@cname='GtkFrame']/method[@name='SetLabelAlign']" name="hidden">1</attr>
   <attr path="/api/namespace/object[@cname='GtkFrame']" name="disabledefaultconstructor">1</attr>
   <attr path="/api/namespace/object[@cname='GtkHandleBox']/property[@name='ShadowType']" name="hidden">1</attr>
+  <attr path="/api/namespace/object[@cname='GtkHBox']" name="disabledefaultconstructor">1</attr>
   <attr path="/api/namespace/object[@cname='GtkHScale']/constructor[@cname='gtk_hscale_new']/*/*[@type='GtkAdjustment*']" name="null_ok">1</attr>
   <attr path="/api/namespace/object[@cname='GtkHScrollbar']/constructor[@cname='gtk_hscrollbar_new']/*/*[@type='GtkAdjustment*']" name="null_ok">1</attr>
   <attr path="/api/namespace/object[@cname='GtkImageMenuItem']/constructor[@cname='gtk_image_menu_item_new_with_mnemonic']" name="preferred">1</attr>
@@ -238,6 +239,7 @@
   <attr path="/api/namespace/object[@cname='GtkTreeView']/method[@name='ScrollToCell']/*/*[@type='GtkTreeViewColumn*']" name="null_ok">1</attr>
   <attr path="/api/namespace/object[@cname='GtkTreeView']/method[@name='SetModel']/*/*[@type='GtkTreeModel*']" name="null_ok">1</attr>
   <attr path="/api/namespace/object[@cname='GtkTreeView']/signal[@name='SetScrollAdjustments']" name="name">ScrollAdjustmentsSet</attr>
+  <attr path="/api/namespace/object[@cname='GtkVBox']" name="disabledefaultconstructor">1</attr>
   <attr path="/api/namespace/object[@cname='GtkViewport']/constructor[@cname='gtk_viewport_new']/*/*[@type='GtkAdjustment*']" name="null_ok">1</attr>
   <attr path="/api/namespace/object[@cname='GtkViewport']/method[@name='SetHadjustment']/*/*[@type='GtkAdjustment*']" name="null_ok">1</attr>
   <attr path="/api/namespace/object[@cname='GtkViewport']/method[@name='SetVadjustment']/*/*[@type='GtkAdjustment*']" name="null_ok">1</attr>
diff --git a/gtk/HBox.custom b/gtk/HBox.custom
new file mode 100644
index 000000000..c6d0c77fe
--- /dev/null
+++ b/gtk/HBox.custom
@@ -0,0 +1,2 @@
+
+public HBox () : this (false, 0) {}
\ No newline at end of file
diff --git a/gtk/VBox.custom b/gtk/VBox.custom
new file mode 100644
index 000000000..90e960e41
--- /dev/null
+++ b/gtk/VBox.custom
@@ -0,0 +1,2 @@
+
+public VBox () : this (false, 0) {}
\ No newline at end of file