gtk4-demo: Fix sliding puzzle demo

diff --git a/demos/gtk-demo/sliding_puzzle.c b/demos/gtk-demo/sliding_puzzle.c
index dbe8129e60b256c04d986c2ba1e039ff701a4fd7..098048eb5d3e926a6a0d3e87bef801653861748e 100644 (file)
--- a/demos/gtk-demo/sliding_puzzle.c
+++ b/demos/gtk-demo/sliding_puzzle.c
@@ -387,7 +387,7 @@ add_choice (GtkWidget    *container,
   icon = gtk_image_new_from_paintable (paintable);
   gtk_image_set_icon_size (GTK_IMAGE (icon), GTK_ICON_SIZE_LARGE);
 
-  gtk_box_append (GTK_BOX (container), icon);
+  gtk_flow_box_insert (GTK_FLOW_BOX (container), icon, -1);
 }
 
 GtkWidget *