diff --git a/File.go b/File.go
index 1782e0b..b0901e6 100644
--- a/File.go
+++ b/File.go
@@ -18,12 +18,12 @@ const (
 )
 
 type File[T any] struct {
-	collection StorageData
+	collection storageData
 	dirty      atomic.Uint32
 	sync       chan struct{}
 }
 
-func (fs *File[T]) Init(c StorageData) error {
+func (fs *File[T]) Init(c storageData) error {
 	fs.collection = c
 	fs.sync = make(chan struct{})
 
diff --git a/Storage.go b/Storage.go
index e23091c..b603db2 100644
--- a/Storage.go
+++ b/Storage.go
@@ -1,7 +1,7 @@
 package ocean
 
 type Storage[T any] interface {
-	Init(data StorageData) error
+	Init(data storageData) error
 	Delete(key string) error
 	Set(key string, value *T) error
 	Sync()
diff --git a/StorageData.go b/storageData.go
similarity index 73%
rename from StorageData.go
rename to storageData.go
index eecf1e1..ee3c3b9 100644
--- a/StorageData.go
+++ b/storageData.go
@@ -2,7 +2,7 @@ package ocean
 
 import "sync"
 
-type StorageData interface {
+type storageData interface {
 	Data() *sync.Map
 	Name() string
 	Root() string