diff --git a/gtk/gtkfontchooserdialog.c b/gtk/gtkfontchooserdialog.c
index 6181db6836..5c38db7fa8 100644
--- a/gtk/gtkfontchooserdialog.c
+++ b/gtk/gtkfontchooserdialog.c
@@ -183,6 +183,8 @@ setup_tweak_button (GtkFontChooserDialog *dialog)
       gtk_header_bar_pack_end (GTK_HEADER_BAR (header), button);
 
       dialog->tweak_button = button;
+
+      update_tweak_button (dialog);
     }
 }