diff --git a/blockset-lib/src/app/add.rs b/blockset-lib/src/app/add.rs
index eb44b5fc..53b8a076 100644
--- a/blockset-lib/src/app/add.rs
+++ b/blockset-lib/src/app/add.rs
@@ -1,5 +1,5 @@
 use core::ops::Deref;
-use std::io;
+use std::io::{self, Cursor};
 
 use io_trait::{DirEntry, Io, Metadata};
 use nanvm_lib::{
@@ -14,9 +14,9 @@ use nanvm_lib::{
     serializer::to_json,
 };
 
-use crate::cdt::tree_add::TreeAdd;
+use crate::{cdt::tree_add::TreeAdd, common::print::Print};
 
-use super::{invalid_input, read_to_tree_file};
+use super::{invalid_input, read_to_tree, read_to_tree_file};
 
 pub struct Add<'a, T: Io, S: 'a + TreeAdd, F: Fn(&'a T) -> S> {
     pub io: &'a T,
@@ -73,7 +73,7 @@ impl<'a, T: Io, S: 'a + TreeAdd, F: Fn(&'a T) -> S> Add<'a, T, S, F> {
             self.display_new,
         )
     }
-    pub fn path_to_json(&self, path: &str) -> io::Result<String> {
+    fn path_to_json(&self, path: &str) -> io::Result<String> {
         let files = read_dir_recursive(self.io, path)?;
         let mut list = Vec::default();
         for e in files {
@@ -83,4 +83,17 @@ impl<'a, T: Io, S: 'a + TreeAdd, F: Fn(&'a T) -> S> Add<'a, T, S, F> {
         }
         dir_to_json(GLOBAL, list.into_iter())
     }
+    pub fn add_dir(
+        &self,
+        path: &str,
+    ) -> io::Result<()> {
+        let json = self.path_to_json(path)?;
+        let hash = read_to_tree(
+            (self.storage)(self.io),
+            Cursor::new(&json),
+            self.io,
+            self.display_new,
+        )?;
+        self.io.stdout().println([hash.as_str()])
+    }
 }
diff --git a/blockset-lib/src/app/add_dir.rs b/blockset-lib/src/app/add_dir.rs
deleted file mode 100644
index 2a290771..00000000
--- a/blockset-lib/src/app/add_dir.rs
+++ /dev/null
@@ -1,22 +0,0 @@
-
-use std::io::{self, Cursor};
-
-use io_trait::Io;
-
-use crate::{cdt::tree_add::TreeAdd, common::print::Print};
-
-use super::{add::Add, read_to_tree};
-
-pub fn add_dir<'a, T: Io, S: 'a + TreeAdd, F: Fn(&'a T) -> S>(
-    add: &Add<'a, T, S, F>,
-    path: &str,
-) -> io::Result<()> {
-    let json = add.path_to_json(path)?;
-    let hash = read_to_tree(
-        (add.storage)(add.io),
-        Cursor::new(&json),
-        add.io,
-        add.display_new,
-    )?;
-    add.io.stdout().println([hash.as_str()])
-}
diff --git a/blockset-lib/src/app/add_entry.rs b/blockset-lib/src/app/add_entry.rs
index 93ee2dfb..b745a442 100644
--- a/blockset-lib/src/app/add_entry.rs
+++ b/blockset-lib/src/app/add_entry.rs
@@ -4,7 +4,7 @@ use io_trait::{Io, Metadata};
 
 use crate::{cdt::tree_add::TreeAdd, common::print::Print};
 
-use super::{add::Add, add_dir::add_dir, invalid_input, is_to_posix_eol};
+use super::{add::Add, invalid_input, is_to_posix_eol};
 
 pub fn add_entry<'a, T: Io, S: 'a + TreeAdd>(
     io: &'a T,
@@ -21,7 +21,7 @@ pub fn add_entry<'a, T: Io, S: 'a + TreeAdd>(
         display_new,
     };
     if io.metadata(&path)?.is_dir() {
-        add_dir(&add, &path)
+        add.add_dir(&path)
     } else {
         let k = add.add_file(&path)?;
         io.stdout().println([k.as_str()])
diff --git a/blockset-lib/src/app/mod.rs b/blockset-lib/src/app/mod.rs
index 77709217..91d5f403 100644
--- a/blockset-lib/src/app/mod.rs
+++ b/blockset-lib/src/app/mod.rs
@@ -1,5 +1,4 @@
 mod add;
-mod add_dir;
 mod add_entry;
 
 use std::io::{self, ErrorKind, Read, Write};