diff --git a/client/incus_instances.go b/client/incus_instances.go
index c23453c85ee..a639822e1cc 100644
--- a/client/incus_instances.go
+++ b/client/incus_instances.go
@@ -1696,7 +1696,7 @@ func (r *ProtocolIncus) GetInstanceFileSFTP(instanceName string) (*sftp.Client,
 	}
 
 	// Get a SFTP client.
-	client, err := sftp.NewClientPipe(conn, conn)
+	client, err := sftp.NewClientPipe(conn, conn, sftp.MaxPacketUnchecked(128*1024))
 	if err != nil {
 		_ = conn.Close()
 		return nil, err
diff --git a/cmd/incusd/main_forkfile.go b/cmd/incusd/main_forkfile.go
index 71b8fbe014e..5bf89cfdb92 100644
--- a/cmd/incusd/main_forkfile.go
+++ b/cmd/incusd/main_forkfile.go
@@ -229,7 +229,7 @@ func (c *cmdForkfile) Run(cmd *cobra.Command, args []string) error {
 			mu.Unlock()
 
 			// Spawn the server.
-			server, err := sftp.NewServer(conn)
+			server, err := sftp.NewServer(conn, sftp.WithAllocator())
 			if err != nil {
 				return
 			}