diff --git a/flask_admin/model/base.py b/flask_admin/model/base.py
index c92b1dc96..c418501ea 100755
--- a/flask_admin/model/base.py
+++ b/flask_admin/model/base.py
@@ -2162,7 +2162,7 @@ def edit_view(self):
                     return redirect(self.get_save_return_url(model, is_created=False))
 
         if request.method == 'GET' or form.errors:
-            self.on_form_prefill(form, id)
+            self.on_form_prefill(form, model)
 
         form_opts = FormOpts(widget_args=self.form_widget_args,
                              form_rules=self._form_edit_rules)