diff --git a/addons/payment/models/payment_acquirer.py b/addons/payment/models/payment_acquirer.py
index 474ccb5aaea..eaa8263478a 100644
--- a/addons/payment/models/payment_acquirer.py
+++ b/addons/payment/models/payment_acquirer.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-'8' "-*-"
+# coding: utf-8
 import logging
 
 import openerp
diff --git a/addons/payment_adyen/models/adyen.py b/addons/payment_adyen/models/adyen.py
index d8d06042365..f9f17126a13 100644
--- a/addons/payment_adyen/models/adyen.py
+++ b/addons/payment_adyen/models/adyen.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-'8' "-*-"
+# coding: utf-8
 
 import base64
 import json
diff --git a/addons/payment_authorize/models/authorize.py b/addons/payment_authorize/models/authorize.py
index 39575961969..828fd614ded 100644
--- a/addons/payment_authorize/models/authorize.py
+++ b/addons/payment_authorize/models/authorize.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-'8' "-*-"
+# coding: utf-8
 
 import hashlib
 import hmac
diff --git a/addons/payment_buckaroo/models/buckaroo.py b/addons/payment_buckaroo/models/buckaroo.py
index 0dd11ae0750..80cfbc2ddfb 100644
--- a/addons/payment_buckaroo/models/buckaroo.py
+++ b/addons/payment_buckaroo/models/buckaroo.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-'8' "-*-"
+# coding: utf-8
 from hashlib import sha1
 import logging
 import urllib
diff --git a/addons/payment_ogone/models/ogone.py b/addons/payment_ogone/models/ogone.py
index 585ad5a09ba..27a19b0e39f 100644
--- a/addons/payment_ogone/models/ogone.py
+++ b/addons/payment_ogone/models/ogone.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-'8' "-*-"
+# coding: utf-8
 
 import datetime
 from hashlib import sha1
diff --git a/addons/payment_paypal/models/paypal.py b/addons/payment_paypal/models/paypal.py
index 2b262002781..d4b8f615bb3 100644
--- a/addons/payment_paypal/models/paypal.py
+++ b/addons/payment_paypal/models/paypal.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-'8' "-*-"
+# coding: utf-8
 
 import base64
 import json
diff --git a/addons/payment_sips/models/sips.py b/addons/payment_sips/models/sips.py
index 9c74bf5ef06..df669fd3804 100644
--- a/addons/payment_sips/models/sips.py
+++ b/addons/payment_sips/models/sips.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-'8' "-*-"
+# coding: utf-8
 
 import json
 import logging
diff --git a/addons/payment_stripe/models/payment_acquirer.py b/addons/payment_stripe/models/payment_acquirer.py
index 1a0f6f3ed6e..2ef53629481 100644
--- a/addons/payment_stripe/models/payment_acquirer.py
+++ b/addons/payment_stripe/models/payment_acquirer.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-'8' "-*-"
+# coding: utf-8
 
 from odoo import api, fields, models
 
diff --git a/addons/payment_stripe/models/payment_method.py b/addons/payment_stripe/models/payment_method.py
index 8fb07704b2e..3bb0deb8de9 100644
--- a/addons/payment_stripe/models/payment_method.py
+++ b/addons/payment_stripe/models/payment_method.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-'8' "-*-"
+# coding: utf-8
 
 import requests
 
diff --git a/addons/payment_stripe/models/payment_transaction.py b/addons/payment_stripe/models/payment_transaction.py
index 66409f0b942..a4b7affb331 100644
--- a/addons/payment_stripe/models/payment_transaction.py
+++ b/addons/payment_stripe/models/payment_transaction.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-'8' "-*-"
+# coding: utf-8
 
 import json
 import logging