diff --git a/gtk/gtkheaderbar.c b/gtk/gtkheaderbar.c
index 042bb42c5d..555d513bbb 100644
--- a/gtk/gtkheaderbar.c
+++ b/gtk/gtkheaderbar.c
@@ -1897,7 +1897,7 @@ gtk_header_bar_class_init (GtkHeaderBarClass *class)
                            P_("Custom Title"),
                            P_("Custom title widget to display"),
                            GTK_TYPE_WIDGET,
-                           G_PARAM_READWRITE|G_PARAM_CONSTRUCT|G_PARAM_STATIC_STRINGS);
+                           G_PARAM_READWRITE|G_PARAM_STATIC_STRINGS);
 
   header_bar_props[PROP_SPACING] =
       g_param_spec_int ("spacing",