diff --git a/cache.go b/cache.go
index 2b9a1d51..8d791b42 100644
--- a/cache.go
+++ b/cache.go
@@ -366,6 +366,7 @@ func (c *Cache) Close() {
 	close(c.stop)
 	close(c.setBuf)
 	c.policy.Close()
+	c.cleanupTicker.Stop()
 	c.isClosed = true
 }