diff --git a/lib/SimpleSAML/Session.php b/lib/SimpleSAML/Session.php
index 91588e3881f9c75610783d5c0988df72ac213571..dc3bd1a2d3964fc2c3e3691e08a90b23f73aa924 100644
--- a/lib/SimpleSAML/Session.php
+++ b/lib/SimpleSAML/Session.php
@@ -574,7 +574,6 @@ class SimpleSAML_Session {
 		$this->sessionindex = null;
 		$this->nameid = null;
 	
-		$this->sp_at_idpsessions = array();	
 		$this->dirty = TRUE;
 	}