diff --git a/apps/inm/serializers2.py b/apps/inm/serializers2.py
index a82e2337..e254dfff 100644
--- a/apps/inm/serializers2.py
+++ b/apps/inm/serializers2.py
@@ -5,13 +5,15 @@ from django.db import transaction
 from rest_framework.exceptions import ParseError
 from apps.wpmw.models import Wpr
 from apps.mtm.models import Material
+from rest_framework import serializers
 
 class MIOItemwCreateUpdateSerializer(CustomModelSerializer):
     ftest = FtestProcessSerializer(required=False)
+    wpr_number_out = serializers.CharField(source="wpr.number_out", read_only=True)
 
     class Meta:
         model = MIOItemw
-        fields = ["id", "number", "wpr", "note", "mioitem", "ftest"]
+        fields = ["id", "number", "wpr", "note", "mioitem", "ftest", "wpr_number_out"]
 
     def validate(self, attrs):
         mioitem: MIOItem = attrs["mioitem"]
diff --git a/apps/inm/views.py b/apps/inm/views.py
index b20dec18..8d6062c2 100644
--- a/apps/inm/views.py
+++ b/apps/inm/views.py
@@ -462,7 +462,7 @@ class MIOItemwViewSet(CustomModelViewSet):
     perms_map = {'get': '*', 'post': 'mio.update', 'put': 'mio.update', 'delete': 'mio.update'}
     queryset = MIOItemw.objects.all()
     serializer_class = MIOItemwCreateUpdateSerializer
-    filterset_fields = ['mioitem']
+    filterset_fields = ['mioitem', 'wpr']
     ordering = ["number", "create_time"]
     ordering_fields = ["number", "create_time"]