diff --git a/djing/fields.py b/djing/fields.py
index 68328e5..c982beb 100644
--- a/djing/fields.py
+++ b/djing/fields.py
@@ -91,11 +91,11 @@ class MACAddressField(models.Field):
                 return self.get_prep_value(value)
             except AddrFormatError:
                 return None
-        elif lookup_type in ('in'):
+        elif lookup_type == 'in':
             try:
                 macs = []
                 for mac in value:
-                    macs += [self.get_prep_value(mac)]
+                    macs.extend(self.get_prep_value(mac))
                 return macs
             except AddrFormatError:
                 return None
@@ -106,7 +106,7 @@ class MACAddressField(models.Field):
 try:
     from south.modelsinspector import add_introspection_rules
 
-    add_introspection_rules([], ["^macaddress\.fields\.MACAddressField"])
+    add_introspection_rules((), ("^macaddress\.fields\.MACAddressField",))
 except ImportError:
     pass
 
diff --git a/searchapp/views.py b/searchapp/views.py
index cf6f348..37e7731 100644
--- a/searchapp/views.py
+++ b/searchapp/views.py
@@ -23,16 +23,18 @@ def home(request):
             devices = Device.objects.filter(ip_address=s)
         else:
             abons = Abon.objects.filter(
-                Q(fio__icontains=s) | Q(username__icontains=s) | Q(telephone__icontains=s)
+                Q(fio__icontains=s) | Q(username__icontains=s) | Q(telephone__icontains=s) |
+                Q(additional_telephones__telephone__icontains=s)
             )
+
             if re.match(MAC_ADDR_REGEX, s):
                 devices = Device.objects.filter(mac_addr=s)
             else:
                 devices = Device.objects.filter(comment__icontains=s)
 
     else:
-        abons = []
-        devices = []
+        abons = ()
+        devices = ()
 
     for abn in abons:
         abn.fio = replace_without_case(escape(abn.fio), s, "<b>%s</b>" % s)