diff --git a/lib/SimpleSAML/XHTML/IdPDisco.php b/lib/SimpleSAML/XHTML/IdPDisco.php
index c0563ad2115515bd59b45d621de737cbc2bcdb91..4b7e51494a7b84474c5832546ef0e13214752fbd 100644
--- a/lib/SimpleSAML/XHTML/IdPDisco.php
+++ b/lib/SimpleSAML/XHTML/IdPDisco.php
@@ -398,9 +398,9 @@ class SimpleSAML_XHTML_IdPDisco {
 			$this->setPreviousIdP($idp);
 
 			if($this->saveIdP()) {
-				$this->setCookie('remember', 1);
+				$this->setCookie('remember', '1');
 			} else {
-				$this->setCookie('remember', 0);
+				$this->setCookie('remember', '0');
 			}
 
 			return $idp;