diff --git a/lib/private/Memcache/Redis.php b/lib/private/Memcache/Redis.php
index f4094e0bef6..b6f96fffba4 100644
--- a/lib/private/Memcache/Redis.php
+++ b/lib/private/Memcache/Redis.php
@@ -74,7 +74,7 @@ class Redis extends Cache implements IMemcacheTTL {
 	}
 
 	public function remove($key) {
-		if ($this->getCache()->del($this->getPrefix() . $key)) {
+		if ($this->getCache()->unlink($this->getPrefix() . $key)) {
 			return true;
 		} else {
 			return false;
@@ -170,7 +170,7 @@ class Redis extends Cache implements IMemcacheTTL {
 		$this->getCache()->watch($this->getPrefix() . $key);
 		if ($this->get($key) === $old) {
 			$result = $this->getCache()->multi()
-				->del($this->getPrefix() . $key)
+				->unlink($this->getPrefix() . $key)
 				->exec();
 			return $result !== false;
 		}