--- a/saml_sp.AuthnRequest.inc	2017-06-12 13:39:27.922286408 +0100
+++ b/saml_sp.AuthnRequest.inc	2017-06-12 13:40:09.928005354 +0100
@@ -72,7 +72,7 @@
    * Returns deflated, base64 encoded, unsigned AuthnRequest.
    *
    */
-  public function getRequest() {
+  public function getRequest($deflate = NULL) {
     $deflatedRequest = gzdeflate($this->_authnRequest);
     $base64Request = base64_encode($deflatedRequest);
     return $base64Request;