diff --git a/kladr.php b/kladr.php
index f4d5f81..39eabee 100644
--- a/kladr.php
+++ b/kladr.php
@@ -24,7 +24,7 @@ public function __construct($token, $key, $domain = false)
 		$this->error = NULL;
 		$this->domain = 'http://kladr-api.ru/';
 		if($domain)
-			$this->domain = domain;
+			$this->domain = $domain;
 	}
 
 	private function GetURL(Query $query)