diff --git a/internal/ssh/keystore.go b/internal/ssh/keystore.go
index fed7233..b80727b 100644
--- a/internal/ssh/keystore.go
+++ b/internal/ssh/keystore.go
@@ -43,14 +43,14 @@ func(s *SshKeyStore) AddFromFile(ctx context.Context, fp string, sessionId strin
 		return fmt.Errorf("Failed to parse public key: %v", err)
 	}
 	k := append([]byte{0x01}, pubKey.Marshal()...)
-	s.store.SetPrefix(storage.DATATYPE_CUSTOM)
+	s.store.SetPrefix(storage.DATATYPE_EXTEND)
 	logg.Infof("Added key", "sessionId", sessionId, "public key", string(publicBytes))
 	return s.store.Put(ctx, k, []byte(sessionId))
 }
 
 func(s *SshKeyStore) Get(ctx context.Context, pubKey ssh.PublicKey) (string, error) {
 	s.store.SetLanguage(nil)
-	s.store.SetPrefix(storage.DATATYPE_CUSTOM)
+	s.store.SetPrefix(storage.DATATYPE_EXTEND)
 	k := append([]byte{0x01}, pubKey.Marshal()...)
 	v, err := s.store.Get(ctx, k)
 	if err != nil {
diff --git a/internal/storage/storage.go b/internal/storage/storage.go
index 53f4392..231a1db 100644
--- a/internal/storage/storage.go
+++ b/internal/storage/storage.go
@@ -5,6 +5,10 @@ import (
 	"git.defalsify.org/vise.git/persist"
 )
 
+const (
+	DATATYPE_EXTEND = 128
+)
+
 type Storage struct {
 	Persister *persist.Persister
 	UserdataDb db.Db