diff --git a/AltoRouter.php b/AltoRouter.php
index 23bdcf4..194a672 100644
--- a/AltoRouter.php
+++ b/AltoRouter.php
@@ -186,7 +186,8 @@ class AltoRouter {
 			if ($_route === '*') {
 				$match = true;
 			} elseif (isset($_route[0]) && $_route[0] === '@') {
-				$match = preg_match('`' . substr($_route, 1) . '`u', $requestUrl, $params);
+				$pattern = '`' . substr($_route, 1) . '`u';
+				$match = preg_match($pattern, $requestUrl, $params);
 			} else {
 				$route = null;
 				$regex = false;
diff --git a/AltoRouterTest.php b/AltoRouterTest.php
index 2462cd8..9ef9d08 100644
--- a/AltoRouterTest.php
+++ b/AltoRouterTest.php
@@ -351,7 +351,7 @@ class AltoRouterTest extends PHPUnit_Framework_TestCase
 		$pattern .= '\x{FE70}-\x{FEFF}';
 		$pattern .= '\x{0750}-\x{077F}';
 		// Alphanumeric, /, _, - and space characters
-		$pattern .= 'a-zA-Z0-9\/_-\s';
+		$pattern .= 'a-zA-Z0-9\/_\-\s';
 		// 'ZERO WIDTH NON-JOINER'
 		$pattern .= '\x{200C}';
 		$pattern .= ']+)';