diff --git a/gtk/gtkdialog.c b/gtk/gtkdialog.c
index 4de0c901f3..5573f64c28 100644
--- a/gtk/gtkdialog.c
+++ b/gtk/gtkdialog.c
@@ -143,7 +143,7 @@
  * <title>A <structname>GtkDialog</structname> UI definition fragment.</title>
  * <programlisting><![CDATA[
  * <object class="GtkDialog" id="dialog1">
- *   <child internal-child="vbox">"
+ *   <child internal-child="vbox">
  *     <object class="GtkVBox" id="vbox">
  *       <child internal-child="action_area">
  *         <object class="GtkHButtonBox" id="button_box">