diff --git a/lib/SimpleSAML/Store/Memcache.php b/lib/SimpleSAML/Store/Memcache.php
index b7a0181ea3e5e49023fb6d83d322cacc011923fa..ccccda0a1c3492c6ff8620615b9039eec134d13d 100644
--- a/lib/SimpleSAML/Store/Memcache.php
+++ b/lib/SimpleSAML/Store/Memcache.php
@@ -57,7 +57,7 @@ class SimpleSAML_Store_Memcache extends SimpleSAML_Store {
 		assert('is_string($type)');
 		assert('is_string($key)');
 
-		SimpleSAML_Memcache::delete('simpleSAMLphp.' . $type . '.' . $key, $value, $expire);
+		SimpleSAML_Memcache::delete('simpleSAMLphp.' . $type . '.' . $key);
 	}
 
 }