diff --git a/apps/assets/forms/cmd_filter.py b/apps/assets/forms/cmd_filter.py
index 308a008d0..cd7df89e8 100644
--- a/apps/assets/forms/cmd_filter.py
+++ b/apps/assets/forms/cmd_filter.py
@@ -2,6 +2,7 @@
 #
 from django import forms
 from django.core.exceptions import ValidationError
+from django.utils.translation import ugettext_lazy as _
 import re
 
 from orgs.mixins import OrgModelForm
diff --git a/apps/assets/serializers/cmd_filter.py b/apps/assets/serializers/cmd_filter.py
index dfdff2cdb..6be0eb466 100644
--- a/apps/assets/serializers/cmd_filter.py
+++ b/apps/assets/serializers/cmd_filter.py
@@ -2,6 +2,7 @@
 #
 import re
 from rest_framework import serializers
+from django.utils.translation import ugettext_lazy as _
 
 from common.fields import ChoiceDisplayField
 from common.serializers import AdaptedBulkListSerializer