diff --git a/modules/openidProvider/lib/Server.php b/modules/openidProvider/lib/Server.php
index e930b2d8ea2ef69b1afab205bbcf7c5171fb917f..62b2ab7bae2039b25377ad3928048fafdd1dc062 100644
--- a/modules/openidProvider/lib/Server.php
+++ b/modules/openidProvider/lib/Server.php
@@ -73,7 +73,6 @@ class sspmod_openidProvider_Server {
 
 		$this->authSource = new SimpleSAML_Auth_Simple($config->getString('auth'));
 		$this->usernameAttribute = $config->getString('username_attribute');
-		$this->delegationPrefix = $config->getString('delegation_prefix');
 
 		SimpleSAML_Utilities::maskErrors(E_WARNING | E_STRICT);
 		try {