diff --git a/internal/driver/addition.go b/internal/driver/addition.go
new file mode 100644
index 00000000000..000a441c0c3
--- /dev/null
+++ b/internal/driver/addition.go
@@ -0,0 +1,4 @@
+package driver
+
+type Addition interface {
+}
diff --git a/internal/driver/driver.go b/internal/driver/driver.go
index ab3e6953445..9473c710a2d 100644
--- a/internal/driver/driver.go
+++ b/internal/driver/driver.go
@@ -22,11 +22,12 @@ type Writer interface {
 	Rename(ctx context.Context, src, dst string) error
 	Copy(ctx context.Context, src, dst string) error
 	Remove(ctx context.Context, path string) error
-	Put(ctx context.Context, stream FileStream, parent string) error
+	Put(ctx context.Context, stream FileStream, parentPath string) error
 }
 
 type Other interface {
 	Init(ctx context.Context) error
 	Update(ctx context.Context) error
 	Drop(ctx context.Context) error
+	Additional() Addition
 }
diff --git a/internal/model/account.go b/internal/model/account.go
index f5c70c91c60..3a2c0cf5b3d 100644
--- a/internal/model/account.go
+++ b/internal/model/account.go
@@ -6,5 +6,5 @@ type Account struct {
 	Index       int    `json:"index"`
 	Driver      string `json:"driver"`
 	Status      string `json:"status"`
-	Custom      string `json:"custom"`
+	Addition    string `json:"addition"`
 }