diff --git a/inventree_phomemo/phomemo_label.py b/inventree_phomemo/phomemo_label.py
index b3d292e..3c11d22 100644
--- a/inventree_phomemo/phomemo_label.py
+++ b/inventree_phomemo/phomemo_label.py
@@ -1,4 +1,7 @@
 # django
+from django.utils.translation import gettext_lazy as _
+from django.core.validators import MinValueValidator
+from django.core.validators import MaxValueValidator
 from django.http import JsonResponse
 
 # printer support