diff --git a/hbp_nrp_virtual_coach/pynrp/virtual_coach.py b/hbp_nrp_virtual_coach/pynrp/virtual_coach.py
index 553756b0f2a4e4d58dbeb5b40b81197adc019add..9880c0e53f81e12e040c6975aa9d035b9b87dd0b 100644
--- a/hbp_nrp_virtual_coach/pynrp/virtual_coach.py
+++ b/hbp_nrp_virtual_coach/pynrp/virtual_coach.py
@@ -205,6 +205,7 @@ class VirtualCoach(object):
             br['j_username'] = user_name
             br['j_password'] = password
 
+            # pylint: disable=assignment-from-none
             res = br.submit()
 
             if 'error=' not in res.geturl():
@@ -215,6 +216,7 @@ class VirtualCoach(object):
         # the user is forwarded to the approve page if not approved yet
         if 'access_token' not in urlparse.urlparse(res.geturl()).fragment.lower():
             br.select_form(name='confirmationForm')
+            # pylint: disable=assignment-from-none
             res = br.submit()
 
         url_with_fragment = res.geturl()