diff --git a/README.md b/README.md
index 0e3aebd..2f60962 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ SimplesamlphpBundle
 
 This is a SimpleSAMLphp Bundle for Symfony2.
 
-**Note:** For Symfony lower to 2.8, you need to use the 1.0.0 release of this bundle.
+**Note:** For Symfony 2.7 or lower, you need to use the 1.0.0 release of this bundle.
 
 ## Installation
 
diff --git a/Resources/config/services.yml b/Resources/config/services.yml
index 57233b4..6533791 100644
--- a/Resources/config/services.yml
+++ b/Resources/config/services.yml
@@ -1,11 +1,11 @@
 services:
     simplesamlphp.auth:
         class: SimpleSAML_Auth_Simple
-        arguments: [ %simplesamlphp.sp% ]
+        arguments: [ '%simplesamlphp.sp%' ]
 
     simplesamlphp.authenticator:
         class: Hslavich\SimplesamlphpBundle\Security\SamlAuthenticator
-        arguments: [ '@simplesamlphp.auth', '@session', %simplesamlphp.auth_attribute% ]
+        arguments: [ '@simplesamlphp.auth', '@session', '%simplesamlphp.auth_attribute%' ]
 
     simplesamlphp.logout_handler:
         class: Hslavich\SimplesamlphpBundle\Security\Http\Logout\LogoutSuccessHandler