diff --git a/modoboa/extensions/limits/forms.py b/modoboa/extensions/limits/forms.py
index 61f977dba..0f0b27f9a 100644
--- a/modoboa/extensions/limits/forms.py
+++ b/modoboa/extensions/limits/forms.py
@@ -19,10 +19,9 @@ class ResourcePoolForm(forms.Form):
             del kwargs["instance"]
         super(ResourcePoolForm, self).__init__(*args, **kwargs)
         for tpl in LimitTemplates().templates:
-            if len(tpl) <= 3:
-                continue
-            if self.account is not None and self.account.group != tpl[3]:
-                continue
+            if len(tpl) > 3:
+                if self.account is not None and self.account.group != tpl[3]:
+                    continue
             self.fields[tpl[0]] = forms.IntegerField(
                 label=tpl[1], help_text=tpl[2]
             )
diff --git a/modoboa/extensions/limits/lib.py b/modoboa/extensions/limits/lib.py
index c190b26d7..c0135a234 100644
--- a/modoboa/extensions/limits/lib.py
+++ b/modoboa/extensions/limits/lib.py
@@ -5,8 +5,9 @@
 
 """
 from django.utils.translation import ugettext as _
-from modoboa.lib.exceptions import ModoboaException
+
 from modoboa.extensions.limits.models import LimitsPool
+from modoboa.lib.exceptions import ModoboaException
 
 
 class LimitReached(ModoboaException):