2 files changed, 7 insertions, 1 deletions
diff --git a/src/ui/widget/panel.cpp b/src/ui/widget/panel.cpp
index 8a1e98a63..5d4a25a68 100644
--- a/src/ui/widget/panel.cpp
+++ b/src/ui/widget/panel.cpp
@@ -73,6 +73,9 @@ Panel::Panel(Glib::ustring const &label, gchar const *prefs_path,
     _action_area(0),
     _fillable(0)
 {
+#if WITH_GTKMM_3_0
+    set_orientation( Gtk::ORIENTATION_VERTICAL );
+#endif
     _init();
 }
 
@@ -92,7 +95,6 @@ void Panel::_popper(GdkEventButton* event)
 
 void Panel::_init()
 {
-    Glib::ustring tmp("<");
     _anchor = SP_ANCHOR_CENTER;
 
     guint panel_size = 0, panel_mode = 0, panel_ratio = 100, panel_border = 0;
diff --git a/src/ui/widget/panel.h b/src/ui/widget/panel.h
index a90060e17..7b2836fe8 100644
--- a/src/ui/widget/panel.h
+++ b/src/ui/widget/panel.h
@@ -64,7 +64,11 @@ namespace Widget {
  * @see UI::Dialog::DesktopTracker to handle desktop change, selection change and selected object modifications.
  * @see UI::Dialog::DialogManager manages the dialogs within inkscape.
  */
+#if WITH_GTKMM_3_0
+class Panel : public Gtk::Box {
+#else
 class Panel : public Gtk::VBox {
+#endif
 
 public:
     static void prep();