diff --git a/dvc/project.py b/dvc/project.py
index 71f943f84..4a3ff8f63 100644
--- a/dvc/project.py
+++ b/dvc/project.py
@@ -80,7 +80,7 @@ class Project(object):
         return os.path.relpath(path, self.root_dir)
 
     def add(self, fname):
-        out = os.path.basename(fname)
+        out = os.path.basename(os.path.normpath(fname))
         stage_fname = out + Stage.STAGE_FILE_SUFFIX
         cwd = os.path.dirname(os.path.abspath(fname))
         stage = Stage.loads(project=self,
diff --git a/tests/test_add.py b/tests/test_add.py
index ad025d12e..b9e6a3a8c 100644
--- a/tests/test_add.py
+++ b/tests/test_add.py
@@ -49,6 +49,13 @@ class TestAddDirectory(TestDvc):
         self.create(os.path.join(dname, 'file'), 'file')
         self.dvc.add(dname)
 
+class TestAddDirectoryWithForwardSlash(TestDvc):
+    def test(self):
+        dname = 'directory/'
+        os.mkdir(dname)
+        self.create(os.path.join(dname, 'file'), 'file')
+        stage = self.dvc.add(dname)
+        self.assertEquals(os.path.abspath('directory.dvc'), stage.path)
 
 class TestAddTrackedFile(TestDvc):
     def test(self):