diff --git a/demos/gtk-demo/path_maze.c b/demos/gtk-demo/path_maze.c
index 6d8acce3ff..aa834d73f4 100644
--- a/demos/gtk-demo/path_maze.c
+++ b/demos/gtk-demo/path_maze.c
@@ -338,7 +338,7 @@ do_path_maze (GtkWidget *do_widget)
       GskPath *path;
 
       window = gtk_window_new ();
-      gtk_window_set_resizable (GTK_WINDOW (window), TRUE);
+      gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
       gtk_window_set_title (GTK_WINDOW (window), "Follow the maze with the mouse");
       g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);