diff --git a/src/milla/auth/permissions.py b/src/milla/auth/permissions.py
index 00a78e0..553285d 100644
--- a/src/milla/auth/permissions.py
+++ b/src/milla/auth/permissions.py
@@ -86,17 +86,8 @@ class Permission(BasePermission):
     def __init__(self, name):
         self.name = name
     
-    def __unicode__(self):
-        if isinstance(self.name, unicode):
-            return self.name
-        else:
-            return self.name.decode('utf-8')
-    
     def __str__(self):
-        if isinstance(self.name, str):
-            return self.name
-        else:
-            return self.name.encode('utf-8')
+        return str(self.name)
 
     def __eq__(self, other):
         return self is other or str(self) == str(other)
@@ -119,7 +110,7 @@ class PermissionRequirement(BasePermission):
         self.requirements = requirements
     
     def __str__(self):
-        return unicode(self).encode('utf-8')
+        return ', '.join(self.requirements)
     
 class PermissionRequirementAll(PermissionRequirement):
     '''Complex permission requirement needing all given permissions'''