diff --git a/dvc/ignore.py b/dvc/ignore.py
index 17dbde4da..54b04f507 100644
--- a/dvc/ignore.py
+++ b/dvc/ignore.py
@@ -3,9 +3,11 @@ from __future__ import unicode_literals
 import logging
 import os
 
+from funcy import cached_property
 from pathspec import PathSpec
 from pathspec.patterns import GitWildMatchPattern
 
+from dvc.scm.tree import BaseTree
 from dvc.utils import relpath
 
 logger = logging.getLogger(__name__)
@@ -90,3 +92,39 @@ class DvcIgnoreFilter(object):
             dirs, files = ignore(root, dirs, files)
 
         return dirs, files
+
+
+class CleanTree(BaseTree):
+    def __init__(self, tree):
+        self.tree = tree
+
+    @cached_property
+    def dvcignore(self):
+        return DvcIgnoreFilter(self.tree)
+
+    @property
+    def tree_root(self):
+        return self.tree.tree_root
+
+    def open(self, path, mode="r", encoding="utf-8"):
+        return self.tree.open(path, mode, encoding)
+
+    def exists(self, path):
+        return self.tree.exists(path)
+
+    def isdir(self, path):
+        return self.tree.isdir(path)
+
+    def isfile(self, path):
+        return self.tree.isfile(path)
+
+    def walk(self, top, topdown=True):
+        for r, d, fs in self.tree.walk(top, topdown):
+            d[:], fs[:] = self.dvcignore(r, d, fs)
+
+            yield r, d, fs
+
+    def walk_files(self, top):
+        for root, _, files in self.walk(top):
+            for file in files:
+                yield os.path.join(root, file)
diff --git a/dvc/repo/brancher.py b/dvc/repo/brancher.py
index a24415a07..99b6aab79 100644
--- a/dvc/repo/brancher.py
+++ b/dvc/repo/brancher.py
@@ -1,6 +1,7 @@
 from funcy import group_by
 
-from dvc.scm.tree import WorkingTree, CleanTree
+from dvc.ignore import CleanTree
+from dvc.scm.tree import WorkingTree
 
 
 def brancher(  # noqa: E302
diff --git a/dvc/scm/git/__init__.py b/dvc/scm/git/__init__.py
index 874c9e510..194c714fd 100644
--- a/dvc/scm/git/__init__.py
+++ b/dvc/scm/git/__init__.py
@@ -8,13 +8,13 @@ from funcy import cached_property
 from pathspec.patterns import GitWildMatchPattern
 
 from dvc.exceptions import GitHookAlreadyExistsError
+from dvc.ignore import CleanTree
 from dvc.scm.base import Base
 from dvc.scm.base import CloneError
 from dvc.scm.base import FileNotInRepoError
 from dvc.scm.base import RevError
 from dvc.scm.base import SCMError
 from dvc.scm.git.tree import GitTree
-from dvc.scm.tree import CleanTree
 from dvc.utils import fix_env
 from dvc.utils import is_binary
 from dvc.utils import relpath
diff --git a/dvc/scm/tree.py b/dvc/scm/tree.py
index 21fba4035..e95af7d57 100644
--- a/dvc/scm/tree.py
+++ b/dvc/scm/tree.py
@@ -1,8 +1,5 @@
 import os
 
-from funcy import cached_property
-
-from dvc.ignore import DvcIgnoreFilter
 from dvc.utils.compat import open
 
 
@@ -75,39 +72,3 @@ class WorkingTree(BaseTree):
             top, topdown=topdown, onerror=onerror
         ):
             yield os.path.normpath(root), dirs, files
-
-
-class CleanTree(BaseTree):
-    def __init__(self, tree):
-        self.tree = tree
-
-    @cached_property
-    def dvcignore(self):
-        return DvcIgnoreFilter(self.tree)
-
-    @property
-    def tree_root(self):
-        return self.tree.tree_root
-
-    def open(self, path, mode="r", encoding="utf-8"):
-        return self.tree.open(path, mode, encoding)
-
-    def exists(self, path):
-        return self.tree.exists(path)
-
-    def isdir(self, path):
-        return self.tree.isdir(path)
-
-    def isfile(self, path):
-        return self.tree.isfile(path)
-
-    def walk(self, top, topdown=True, **kwargs):
-        for r, d, fs in self.tree.walk(top, topdown):
-            d[:], fs[:] = self.dvcignore(r, d, fs)
-
-            yield r, d, fs
-
-    def walk_files(self, top):
-        for root, _, files in self.walk(top):
-            for file in files:
-                yield os.path.join(root, file)
diff --git a/tests/func/test_repo.py b/tests/func/test_repo.py
index d78b55fa6..8bb7abfed 100644
--- a/tests/func/test_repo.py
+++ b/tests/func/test_repo.py
@@ -1,9 +1,9 @@
 import os
 
+from dvc.ignore import CleanTree
 from dvc.scm.git.tree import GitTree
 from dvc.cache import Cache
 from dvc.repo import Repo
-from dvc.scm.tree import CleanTree
 from dvc.system import System
 from dvc.utils.compat import fspath
 
diff --git a/tests/func/test_tree.py b/tests/func/test_tree.py
index d3df8528e..29d8d5e21 100644
--- a/tests/func/test_tree.py
+++ b/tests/func/test_tree.py
@@ -3,9 +3,10 @@ from __future__ import unicode_literals
 
 from os.path import join
 
+from dvc.ignore import CleanTree
 from dvc.scm import SCM
 from dvc.scm.git import GitTree
-from dvc.scm.tree import WorkingTree, CleanTree
+from dvc.scm.tree import WorkingTree
 from tests.basic_env import TestDir
 from tests.basic_env import TestGit
 from tests.basic_env import TestGitSubmodule
diff --git a/tests/unit/utils/test_fs.py b/tests/unit/utils/test_fs.py
index 0dca8c65b..bc1547629 100644
--- a/tests/unit/utils/test_fs.py
+++ b/tests/unit/utils/test_fs.py
@@ -5,8 +5,9 @@ import pytest
 from mock import patch
 
 import dvc
+from dvc.ignore import CleanTree
 from dvc.path_info import PathInfo
-from dvc.scm.tree import WorkingTree, CleanTree
+from dvc.scm.tree import WorkingTree
 from dvc.system import System
 from dvc.utils import relpath
 from dvc.utils.compat import str