diff --git a/staging/src/k8s.io/apiserver/pkg/server/options/etcd.go b/staging/src/k8s.io/apiserver/pkg/server/options/etcd.go
index dfadadbcadf..3b494cb25a7 100644
--- a/staging/src/k8s.io/apiserver/pkg/server/options/etcd.go
+++ b/staging/src/k8s.io/apiserver/pkg/server/options/etcd.go
@@ -148,10 +148,6 @@ func (s *EtcdOptions) AddFlags(fs *pflag.FlagSet) {
 	fs.StringVar(&s.StorageConfig.Type, "storage-backend", s.StorageConfig.Type,
 		"The storage backend for persistence. Options: 'etcd3' (default).")
 
-	dummyCacheSize := 0
-	fs.IntVar(&dummyCacheSize, "deserialization-cache-size", 0, "Number of deserialized json objects to cache in memory.")
-	fs.MarkDeprecated("deserialization-cache-size", "the deserialization cache was dropped in 1.13 with support for etcd2")
-
 	fs.StringSliceVar(&s.StorageConfig.Transport.ServerList, "etcd-servers", s.StorageConfig.Transport.ServerList,
 		"List of etcd servers to connect with (scheme://ip:port), comma separated.")