diff --git a/includes/libs/objectcache/wancache/WANObjectCache.php b/includes/libs/objectcache/wancache/WANObjectCache.php
index cfe6cc8e27a..8624084810d 100644
--- a/includes/libs/objectcache/wancache/WANObjectCache.php
+++ b/includes/libs/objectcache/wancache/WANObjectCache.php
@@ -1401,7 +1401,7 @@ class WANObjectCache implements
 	 *      Default: null.
 	 * @param array $cbParams Custom field/value map to pass to the callback (since 1.35)
 	 * @codingStandardsIgnoreStart
-	 * @phan-param array{checkKeys?:string[],graceTTL?:int,lockTSE?:int,busyValue?:mixed,pcTTL?:int,pcGroup?:string,version?:int,minAsOf?:int,hotTTR?:int,lowTTL?:int,ageNew?:int,staleTTL?:int,touchedCallback?:callable} $opts
+	 * @phan-param array{checkKeys?:string[],graceTTL?:int,lockTSE?:int,busyValue?:mixed,pcTTL?:int,pcGroup?:string,version?:int,minAsOf?:float|int,hotTTR?:int,lowTTL?:int,ageNew?:int,staleTTL?:int,touchedCallback?:callable} $opts
 	 * @codingStandardsIgnoreEnd
 	 * @return mixed Value found or written to the key
 	 * @note Options added in 1.28: version, busyValue, hotTTR, ageNew, pcGroup, minAsOf