diff --git a/lib/SAML2/XML/md/AttributeAuthorityDescriptor.php b/lib/SAML2/XML/md/AttributeAuthorityDescriptor.php
index 8babb283abe6d47150564c4f25f41b63c01872fe..68eefee68fff4ed676ef4b95327d4fb00644e7ff 100644
--- a/lib/SAML2/XML/md/AttributeAuthorityDescriptor.php
+++ b/lib/SAML2/XML/md/AttributeAuthorityDescriptor.php
@@ -78,7 +78,7 @@ class SAML2_XML_md_AttributeAuthorityDescriptor extends SAML2_XML_md_RoleDescrip
 		}
 
 		foreach (SAML2_Utils::xpQuery($xml, './saml_metadata:AssertionIDRequestService') as $ep) {
-			$this->AssertionIDRequestService[] = new SAML2_XML_md_EndpointType($airs);
+			$this->AssertionIDRequestService[] = new SAML2_XML_md_EndpointType($ep);
 		}
 
 		$this->NameIDFormat = SAML2_Utils::extractStrings($xml, SAML2_Const::NS_MD, 'NameIDFormat');