diff --git a/demos/gtk-demo/listview_minesweeper.c b/demos/gtk-demo/listview_minesweeper.c
index f7f77d6231..662ba06553 100644
--- a/demos/gtk-demo/listview_minesweeper.c
+++ b/demos/gtk-demo/listview_minesweeper.c
@@ -8,6 +8,7 @@
  * to implement rather different interaction behavior to a typical list.
  */
 
+#include "config.h"
 #include <glib/gi18n.h>
 #include <gtk/gtk.h>
 
@@ -375,6 +376,23 @@ sweeper_game_init (SweeperGame *self)
   sweeper_game_new_game (self, 8, 8, 10);
 }
 
+static void
+celebrate (gboolean win)
+{
+  char *path;
+  GtkMediaStream *stream;
+
+  if (win)
+    path = g_build_filename (GTK_DATADIR, "sounds", "freedesktop", "stereo", "complete.oga", NULL);
+  else
+    path = g_build_filename (GTK_DATADIR, "sounds", "freedesktop", "stereo", "suspend-error.oga", NULL);
+  stream = gtk_media_file_new_for_filename (path);
+  gtk_media_stream_set_volume (stream, 1.0);
+  gtk_media_stream_play (stream);
+  g_signal_connect (stream, "notify::ended", G_CALLBACK (g_object_unref), NULL);
+  g_free (path);
+}
+
 static void
 sweeper_game_end (SweeperGame *self,
                   gboolean     win)
@@ -383,7 +401,9 @@ sweeper_game_end (SweeperGame *self,
     {
       self->playing = FALSE;
       g_object_notify_by_pspec (G_OBJECT (self), game_properties[GAME_PROP_PLAYING]);
+      celebrate (win);
     }
+
   if (self->win != win)
     {
       self->win = win;
diff --git a/demos/gtk-demo/peg_solitaire.c b/demos/gtk-demo/peg_solitaire.c
index 0f5761408c..2006aab736 100644
--- a/demos/gtk-demo/peg_solitaire.c
+++ b/demos/gtk-demo/peg_solitaire.c
@@ -119,12 +119,6 @@ solitaire_peg_new (void)
 
 /*** Helper for finding a win ***/
 
-static void
-ended (GObject *object)
-{
-  g_object_unref (object);
-}
-
 static void
 celebrate (gboolean win)
 {
@@ -134,12 +128,12 @@ celebrate (gboolean win)
   if (win)
     path = g_build_filename (GTK_DATADIR, "sounds", "freedesktop", "stereo", "complete.oga", NULL);
   else
-    path = g_build_filename (GTK_DATADIR, "sounds", "freedesktop", "stereo", "dialog-error.oga", NULL);
+    path = g_build_filename (GTK_DATADIR, "sounds", "freedesktop", "stereo", "suspend-error.oga", NULL);
   stream = gtk_media_file_new_for_filename (path);
   gtk_media_stream_set_volume (stream, 1.0);
   gtk_media_stream_play (stream);
 
-  g_signal_connect (stream, "notify::ended", G_CALLBACK (ended), NULL);
+  g_signal_connect (stream, "notify::ended", G_CALLBACK (g_object_unref), NULL);
   g_free (path);
 }
 
diff --git a/demos/gtk-demo/sliding_puzzle.c b/demos/gtk-demo/sliding_puzzle.c
index 592fe0fde2..0e4c08a00f 100644
--- a/demos/gtk-demo/sliding_puzzle.c
+++ b/demos/gtk-demo/sliding_puzzle.c
@@ -40,7 +40,7 @@ celebrate (gboolean win)
   if (win)
     path = g_build_filename (GTK_DATADIR, "sounds", "freedesktop", "stereo", "complete.oga", NULL);
   else
-    path = g_build_filename (GTK_DATADIR, "sounds", "freedesktop", "stereo", "dialog-error.oga", NULL);
+    path = g_build_filename (GTK_DATADIR, "sounds", "freedesktop", "stereo", "suspend-error.oga", NULL);
   stream = gtk_media_file_new_for_filename (path);
   gtk_media_stream_set_volume (stream, 1.0);
   gtk_media_stream_play (stream);