diff --git a/letsencrypt/controllers/main.py b/letsencrypt/controllers/main.py
index b5eaf89de..573b0607d 100644
--- a/letsencrypt/controllers/main.py
+++ b/letsencrypt/controllers/main.py
@@ -4,7 +4,6 @@
 import os
 from openerp import http
 from openerp.http import request
-from openerp.tools.misc import file_open
 
 
 class Letsencrypt(http.Controller):
diff --git a/letsencrypt/models/letsencrypt.py b/letsencrypt/models/letsencrypt.py
index 8a3389ea2..dc9280dac 100644
--- a/letsencrypt/models/letsencrypt.py
+++ b/letsencrypt/models/letsencrypt.py
@@ -9,7 +9,6 @@ import subprocess
 import tempfile
 from openerp import _, api, models, exceptions
 from openerp.tools.config import _get_default_datadir
-from openerp.tools.misc import file_open
 
 
 DEFAULT_KEY_LENGTH = 4096