diff --git a/cotisations/payment_utils/comnpay.py b/cotisations/payment_utils/comnpay.py
index dcf7e22a..ad0d8c77 100644
--- a/cotisations/payment_utils/comnpay.py
+++ b/cotisations/payment_utils/comnpay.py
@@ -62,8 +62,8 @@ class Payment():
         ret = ""
         for key in array_tpe:
             ret += '<input type="hidden" name="{k}" value="{v}"/>'.format(
-                'k'=key,
-                'v'=array_type[key]
+                k=key,
+                v=array_type[key]
             )
 
         return ret
diff --git a/machines/models.py b/machines/models.py
index 361c7bc1..e3024578 100644
--- a/machines/models.py
+++ b/machines/models.py
@@ -592,7 +592,7 @@ class Mx(RevMixin, AclMixin, models.Model):
         fichiers de zones"""
         return "@               IN  MX  {prior} {name}".format(
             prior=str(self.priority).ljust(3),
-            name=str(name)
+            name=str(self.name)
         )
 
     def __str__(self):