diff --git a/rtgui/preferences.cc b/rtgui/preferences.cc
index b37fc537a..b7d10c8de 100644
--- a/rtgui/preferences.cc
+++ b/rtgui/preferences.cc
@@ -1450,7 +1450,7 @@ Gtk::Widget* Preferences::getSoundsPanel ()
     swSounds = Gtk::manage(new Gtk::ScrolledWindow());
     swSounds->set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
 
-    Gtk::VBox* vbSounds = new Gtk::VBox ();
+    Gtk::VBox* vbSounds = Gtk::manage(new Gtk::VBox ());
 
     ckbSndEnable = Gtk::manage ( new Gtk::CheckButton (M ("GENERAL_ENABLE")));
     sndEnableConn = ckbSndEnable->signal_toggled().connect (sigc::mem_fun (*this, &Preferences::sndEnableToggled));