diff --git a/gtk/gtkfilechooserwidget.c b/gtk/gtkfilechooserwidget.c
index 3143497c32..01aeedf077 100644
--- a/gtk/gtkfilechooserwidget.c
+++ b/gtk/gtkfilechooserwidget.c
@@ -97,6 +97,10 @@
  * It exposes the #GtkFileChooser interface, and you should
  * use the methods of this interface to interact with the
  * widget.
+ *
+ * # CSS nodes
+ *
+ * GtkFileChooserWidget has a single CSS node with name filechooser.
  */
 
 
@@ -8482,6 +8486,8 @@ gtk_file_chooser_widget_class_init (GtkFileChooserWidgetClass *class)
   gtk_widget_class_bind_template_callback (widget_class, rename_file_name_changed);
   gtk_widget_class_bind_template_callback (widget_class, rename_file_rename_clicked);
   gtk_widget_class_bind_template_callback (widget_class, rename_file_end);
+
+  gtk_widget_class_set_css_name (widget_class, "filechooser");
 }
 
 static void