diff --git a/framework/validators/UrlValidator.php b/framework/validators/UrlValidator.php
index 1833994308..feaf145abb 100644
--- a/framework/validators/UrlValidator.php
+++ b/framework/validators/UrlValidator.php
@@ -120,7 +120,7 @@ class UrlValidator extends Validator
 
 		$options = [
 			'pattern' => new JsExpression($pattern),
-			'message' =>Yii::$app->getI18n()->format($this->message, [
+			'message' => Yii::$app->getI18n()->format($this->message, [
 				'attribute' => $object->getAttributeLabel($attribute),
 			], Yii::$app->language),
 			'enableIDN' => (boolean)$this->enableIDN,