diff --git a/includes/libs/objectcache/WANObjectCache.php b/includes/libs/objectcache/WANObjectCache.php
index 21d68851186..e1ac56e3a2b 100644
--- a/includes/libs/objectcache/WANObjectCache.php
+++ b/includes/libs/objectcache/WANObjectCache.php
@@ -923,7 +923,7 @@ class WANObjectCache implements IExpiringStore, LoggerAwareInterface {
 	 *
 	 * @param string $key Cache key
 	 * @param integer $ttl How long to keep the tombstone [seconds]
-	 * @param holdoff $ttl HOLDOFF_* constant controlling how long to ignore sets for this key
+	 * @param integer $holdoff HOLDOFF_* constant controlling how long to ignore sets for this key
 	 * @return bool Success
 	 */
 	protected function relayPurge( $key, $ttl, $holdoff ) {