diff --git a/src/types/form.rs b/src/types/form.rs
index 94e57f599..d1deac937 100644
--- a/src/types/form.rs
+++ b/src/types/form.rs
@@ -218,7 +218,7 @@ impl<T: Serialize> Responder for Form<T> {
 #[derive(Clone)]
 pub struct FormConfig {
     limit: usize,
-    err_handler: Option<Rc<dyn Fn(UrlencodedError, &HttpRequest) -> Error>>,
+    err_handler: FormErrHandler,
 }
 
 impl FormConfig {