diff --git a/src/lib.rs b/src/lib.rs
index 795d13c..faa8528 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -182,7 +182,7 @@ impl ValidationContext<()> {
     ///
     /// fn custom_response(errors: ValidationErrors) -> Response {
     ///   // return response with custom status code and body
-    ///   (StatusCode::NOT_FOUND, Json(errors)).into_response()
+    ///   (StatusCode::IM_A_TEAPOT, Json(errors)).into_response()
     /// }
     ///
     /// let context = ValidationContext::custom(custom_response);
@@ -293,6 +293,12 @@ impl<Arguments> ValidationContext<Arguments> {
     }
 }
 
+impl FromRef<()> for ValidationContext<()> {
+    fn from_ref(_: &()) -> Self {
+        ValidationContext::default()
+    }
+}
+
 /// `ValidError` is the error type returned when the `Valid` extractor fails.
 ///
 /// It has two variants: