diff --git a/InvenTree/part/api.py b/InvenTree/part/api.py
index 3169c613ca..f4b5f4a5eb 100644
--- a/InvenTree/part/api.py
+++ b/InvenTree/part/api.py
@@ -180,7 +180,7 @@ class PartList(generics.ListCreateAPIView):
 
         # Pass a list of "starred" parts fo the current user to the serializer
         # We do this to reduce the number of database queries required!
-        if self.starred_parts is None:
+        if self.starred_parts is None and self.request is not None:
             self.starred_parts = [star.part for star in self.request.user.starred_parts.all()]
 
         kwargs['starred_parts'] = self.starred_parts