diff --git a/addons/l10n_ch/tests/test_l10n_ch_qr_print.py b/addons/l10n_ch/tests/test_l10n_ch_qr_print.py
index 19cee822985..49369776f50 100644
--- a/addons/l10n_ch/tests/test_l10n_ch_qr_print.py
+++ b/addons/l10n_ch/tests/test_l10n_ch_qr_print.py
@@ -56,7 +56,7 @@ class QRPrintTest(AccountTestInvoicingCommon):
             invoice.action_invoice_sent()
             return True
         except UserError as e:
-            _logger.warning(e.name)
+            _logger.warning(str(e))
             return False
 
     def test_print_qr(self):
diff --git a/addons/microsoft_outlook/controllers/main.py b/addons/microsoft_outlook/controllers/main.py
index a4fc8ac93e7..fd1bb08465e 100644
--- a/addons/microsoft_outlook/controllers/main.py
+++ b/addons/microsoft_outlook/controllers/main.py
@@ -62,7 +62,7 @@ class MicrosoftOutlookController(http.Controller):
             refresh_token, access_token, expiration = record._fetch_outlook_refresh_token(code)
         except UserError as e:
             return request.render('microsoft_outlook.microsoft_outlook_oauth_error', {
-                'error': str(e.name),
+                'error': str(e),
                 'model_name': model_name,
                 'rec_id': rec_id,
             })
diff --git a/addons/portal/controllers/portal.py b/addons/portal/controllers/portal.py
index 920f6717f18..d36353deeea 100644
--- a/addons/portal/controllers/portal.py
+++ b/addons/portal/controllers/portal.py
@@ -260,7 +260,7 @@ class CustomerPortal(Controller):
                 msg = _('The old password you provided is incorrect, your password was not changed.')
             return {'errors': {'password': {'old': msg}}}
         except UserError as e:
-            return {'errors': {'password': e.name}}
+            return {'errors': {'password': str(e)}}
 
         # update session token so the user does not get logged out (cache cleared by passwd change)
         new_token = request.env.user._compute_session_token(request.session.sid)