diff --git a/source/src/main/java/one/nem/lacerta/source/file/FileManager.java b/source/src/main/java/one/nem/lacerta/source/file/FileManager.java
index 7fdf64a1..24178915 100644
--- a/source/src/main/java/one/nem/lacerta/source/file/FileManager.java
+++ b/source/src/main/java/one/nem/lacerta/source/file/FileManager.java
@@ -11,6 +11,7 @@ public interface FileManager {
 
     Path getRootDir();
     void changeDir(String dirName); //cd
+    void changeDir(Path path); //cd
     void backDir(); //cd ..
     void backRootDir(); //cd /
     List<Path> getList();