diff --git a/IPython/html/files/handlers.py b/IPython/html/files/handlers.py
index bde2e09..e06a898 100644
--- a/IPython/html/files/handlers.py
+++ b/IPython/html/files/handlers.py
@@ -22,7 +22,6 @@ try:
except ImportError:
app_log = logging.getLogger()
-from IPython.html.utils import is_hidden
from IPython.html.base.handlers import IPythonHandler
class FilesHandler(IPythonHandler):
@@ -32,7 +31,7 @@ class FilesHandler(IPythonHandler):
def get(self, path):
cm = self.settings['contents_manager']
abs_path = os.path.join(cm.root_dir, path)
- if is_hidden(abs_path):
+ if cm.is_hidden(abs_path):
self.log.info("Refusing to serve hidden file, via 404 Error")
raise web.HTTPError(404)