of dialogs. This option has no effect if you have suppressed all dialog
boxes with the option @code{use-dialog-box}.
-@vindex use-old-gtk-file-dialog
+@vindex x-use-old-gtk-file-dialog
For Gtk+ version 2.4, you can make Emacs use the old file dialog
-by setting the variable @code{use-old-gtk-file-dialog} to a non-@code{nil}
+by setting the variable @code{x-use-old-gtk-file-dialog} to a non-@code{nil}
value. If Emacs is built with a Gtk+ version that has only one file dialog,
the setting of this variable has no effect.